Home / 125,080.20-172,612.08-71,372.34

Finding the Fourth Proportional to 125,080.20, 172,612.08 and 71,372.34

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Solution

The fourth proportional to 125,080.20, 172,612.08 and 71,372.34 is: 98,494.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,080.20 : 172,612.08 = 71,372.34 : x
  2. Step 2: Convert to fraction form
    125,080.20/172,612.08 = 71,372.34/x
  3. Step 3: Cross multiply
    125,080.20x = 172,612.08 × 71,372.34
  4. Step 4: Simplify right side
    125,080.20x = 12,319,728,061.87
  5. Step 5: Solve for x
    x = 12,319,728,061.87/125,080.20
  6. Step 6: Final answer
    x = 98,494.63

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1.5x scale

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.