Home / 125,083.10-172,612.60-67,721.96

Finding the Fourth Proportional to 125,083.10, 172,612.60 and 67,721.96

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Solution

The fourth proportional to 125,083.10, 172,612.60 and 67,721.96 is: 93,455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,083.10 : 172,612.60 = 67,721.96 : x
  2. Step 2: Convert to fraction form
    125,083.10/172,612.60 = 67,721.96/x
  3. Step 3: Cross multiply
    125,083.10x = 172,612.60 × 67,721.96
  4. Step 4: Simplify right side
    125,083.10x = 11,689,663,592.70
  5. Step 5: Solve for x
    x = 11,689,663,592.70/125,083.10
  6. Step 6: Final answer
    x = 93,455.18

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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.