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Finding the Fourth Proportional to 125,306.32, 187,959.32 and 30,536.40

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Solution

The fourth proportional to 125,306.32, 187,959.32 and 30,536.40 is: 45,804.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,306.32 : 187,959.32 = 30,536.40 : x
  2. Step 2: Convert to fraction form
    125,306.32/187,959.32 = 30,536.40/x
  3. Step 3: Cross multiply
    125,306.32x = 187,959.32 × 30,536.40
  4. Step 4: Simplify right side
    125,306.32x = 5,739,600,979.25
  5. Step 5: Solve for x
    x = 5,739,600,979.25/125,306.32
  6. Step 6: Final answer
    x = 45,804.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.