Home / 143,014.94-197,360.65-79,353.19

Finding the Fourth Proportional to 143,014.94, 197,360.65 and 79,353.19

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Solution

The fourth proportional to 143,014.94, 197,360.65 and 79,353.19 is: 109,507.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,014.94 : 197,360.65 = 79,353.19 : x
  2. Step 2: Convert to fraction form
    143,014.94/197,360.65 = 79,353.19/x
  3. Step 3: Cross multiply
    143,014.94x = 197,360.65 × 79,353.19
  4. Step 4: Simplify right side
    143,014.94x = 15,661,197,157.97
  5. Step 5: Solve for x
    x = 15,661,197,157.97/143,014.94
  6. Step 6: Final answer
    x = 109,507.42

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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.