Home / 125,121.85-172,625.25-71,368.18

Finding the Fourth Proportional to 125,121.85, 172,625.25 and 71,368.18

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Solution

The fourth proportional to 125,121.85, 172,625.25 and 71,368.18 is: 98,463.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,121.85 : 172,625.25 = 71,368.18 : x
  2. Step 2: Convert to fraction form
    125,121.85/172,625.25 = 71,368.18/x
  3. Step 3: Cross multiply
    125,121.85x = 172,625.25 × 71,368.18
  4. Step 4: Simplify right side
    125,121.85x = 12,319,949,914.55
  5. Step 5: Solve for x
    x = 12,319,949,914.55/125,121.85
  6. Step 6: Final answer
    x = 98,463.62

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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.