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Finding the Fourth Proportional to 125,315.38, 172,944.38 and 71,599.24

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Solution

The fourth proportional to 125,315.38, 172,944.38 and 71,599.24 is: 98,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,315.38 : 172,944.38 = 71,599.24 : x
  2. Step 2: Convert to fraction form
    125,315.38/172,944.38 = 71,599.24/x
  3. Step 3: Cross multiply
    125,315.38x = 172,944.38 × 71,599.24
  4. Step 4: Simplify right side
    125,315.38x = 12,382,686,170.27
  5. Step 5: Solve for x
    x = 12,382,686,170.27/125,315.38
  6. Step 6: Final answer
    x = 98,812.18

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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.