Home / 143,370.03-197,855.70-78,844.17

Finding the Fourth Proportional to 143,370.03, 197,855.70 and 78,844.17

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Solution

The fourth proportional to 143,370.03, 197,855.70 and 78,844.17 is: 108,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,370.03 : 197,855.70 = 78,844.17 : x
  2. Step 2: Convert to fraction form
    143,370.03/197,855.70 = 78,844.17/x
  3. Step 3: Cross multiply
    143,370.03x = 197,855.70 × 78,844.17
  4. Step 4: Simplify right side
    143,370.03x = 15,599,768,446.27
  5. Step 5: Solve for x
    x = 15,599,768,446.27/143,370.03
  6. Step 6: Final answer
    x = 108,807.74

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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.