Home / 143,013.94-197,359.27-79,352.19

Finding the Fourth Proportional to 143,013.94, 197,359.27 and 79,352.19

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Solution

The fourth proportional to 143,013.94, 197,359.27 and 79,352.19 is: 109,506.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,013.94 : 197,359.27 = 79,352.19 : x
  2. Step 2: Convert to fraction form
    143,013.94/197,359.27 = 79,352.19/x
  3. Step 3: Cross multiply
    143,013.94x = 197,359.27 × 79,352.19
  4. Step 4: Simplify right side
    143,013.94x = 15,660,890,092.92
  5. Step 5: Solve for x
    x = 15,660,890,092.92/143,013.94
  6. Step 6: Final answer
    x = 109,506.04

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.