Home / 123,901.28-170,983.32-67,312.16

Finding the Fourth Proportional to 123,901.28, 170,983.32 and 67,312.16

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Solution

The fourth proportional to 123,901.28, 170,983.32 and 67,312.16 is: 92,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,901.28 : 170,983.32 = 67,312.16 : x
  2. Step 2: Convert to fraction form
    123,901.28/170,983.32 = 67,312.16/x
  3. Step 3: Cross multiply
    123,901.28x = 170,983.32 × 67,312.16
  4. Step 4: Simplify right side
    123,901.28x = 11,509,256,593.17
  5. Step 5: Solve for x
    x = 11,509,256,593.17/123,901.28
  6. Step 6: Final answer
    x = 92,890.54

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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.