Home / 123,593.28-170,501.32-72,589.72

Finding the Fourth Proportional to 123,593.28, 170,501.32 and 72,589.72

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Solution

The fourth proportional to 123,593.28, 170,501.32 and 72,589.72 is: 100,140.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,593.28 : 170,501.32 = 72,589.72 : x
  2. Step 2: Convert to fraction form
    123,593.28/170,501.32 = 72,589.72/x
  3. Step 3: Cross multiply
    123,593.28x = 170,501.32 × 72,589.72
  4. Step 4: Simplify right side
    123,593.28x = 12,376,643,078.43
  5. Step 5: Solve for x
    x = 12,376,643,078.43/123,593.28
  6. Step 6: Final answer
    x = 100,140.10

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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.