Home / 125,105.81-172,650.17-68,520.29

Finding the Fourth Proportional to 125,105.81, 172,650.17 and 68,520.29

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Solution

The fourth proportional to 125,105.81, 172,650.17 and 68,520.29 is: 94,560.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,105.81 : 172,650.17 = 68,520.29 : x
  2. Step 2: Convert to fraction form
    125,105.81/172,650.17 = 68,520.29/x
  3. Step 3: Cross multiply
    125,105.81x = 172,650.17 × 68,520.29
  4. Step 4: Simplify right side
    125,105.81x = 11,830,039,374.35
  5. Step 5: Solve for x
    x = 11,830,039,374.35/125,105.81
  6. Step 6: Final answer
    x = 94,560.27

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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.