Home / 124,943.68-172,405.28-74,632

Finding the Fourth Proportional to 124,943.68, 172,405.28 and 74,632

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Solution

The fourth proportional to 124,943.68, 172,405.28 and 74,632 is: 102,982.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,943.68 : 172,405.28 = 74,632 : x
  2. Step 2: Convert to fraction form
    124,943.68/172,405.28 = 74,632/x
  3. Step 3: Cross multiply
    124,943.68x = 172,405.28 × 74,632
  4. Step 4: Simplify right side
    124,943.68x = 12,866,950,856.96
  5. Step 5: Solve for x
    x = 12,866,950,856.96/124,943.68
  6. Step 6: Final answer
    x = 102,982.01

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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.