Home / 124,943.20-172,423.20-68,355.52

Finding the Fourth Proportional to 124,943.20, 172,423.20 and 68,355.52

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Solution

The fourth proportional to 124,943.20, 172,423.20 and 68,355.52 is: 94,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,943.20 : 172,423.20 = 68,355.52 : x
  2. Step 2: Convert to fraction form
    124,943.20/172,423.20 = 68,355.52/x
  3. Step 3: Cross multiply
    124,943.20x = 172,423.20 × 68,355.52
  4. Step 4: Simplify right side
    124,943.20x = 11,786,077,496.06
  5. Step 5: Solve for x
    x = 11,786,077,496.06/124,943.20
  6. Step 6: Final answer
    x = 94,331.48

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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.