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Finding the Fourth Proportional to 125,314.40, 172,943.02 and 71,598.26

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Solution

The fourth proportional to 125,314.40, 172,943.02 and 71,598.26 is: 98,810.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,314.40 : 172,943.02 = 71,598.26 : x
  2. Step 2: Convert to fraction form
    125,314.40/172,943.02 = 71,598.26/x
  3. Step 3: Cross multiply
    125,314.40x = 172,943.02 × 71,598.26
  4. Step 4: Simplify right side
    125,314.40x = 12,382,419,311.15
  5. Step 5: Solve for x
    x = 12,382,419,311.15/125,314.40
  6. Step 6: Final answer
    x = 98,810.83

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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.