Home / 124,752.13-172,159.15-68,163.50

Finding the Fourth Proportional to 124,752.13, 172,159.15 and 68,163.50

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Solution

The fourth proportional to 124,752.13, 172,159.15 and 68,163.50 is: 94,066.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,752.13 : 172,159.15 = 68,163.50 : x
  2. Step 2: Convert to fraction form
    124,752.13/172,159.15 = 68,163.50/x
  3. Step 3: Cross multiply
    124,752.13x = 172,159.15 × 68,163.50
  4. Step 4: Simplify right side
    124,752.13x = 11,734,970,221.03
  5. Step 5: Solve for x
    x = 11,734,970,221.03/124,752.13
  6. Step 6: Final answer
    x = 94,066.29

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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.