Home / 124,717.86-172,110.65-68,129.24

Finding the Fourth Proportional to 124,717.86, 172,110.65 and 68,129.24

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Solution

The fourth proportional to 124,717.86, 172,110.65 and 68,129.24 is: 94,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,717.86 : 172,110.65 = 68,129.24 : x
  2. Step 2: Convert to fraction form
    124,717.86/172,110.65 = 68,129.24/x
  3. Step 3: Cross multiply
    124,717.86x = 172,110.65 × 68,129.24
  4. Step 4: Simplify right side
    124,717.86x = 11,725,766,962.43
  5. Step 5: Solve for x
    x = 11,725,766,962.43/124,717.86
  6. Step 6: Final answer
    x = 94,018.35

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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.