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Finding the Fourth Proportional to 125,248.80, 187,873.59 and 30,479.00

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Solution

The fourth proportional to 125,248.80, 187,873.59 and 30,479.00 is: 45,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,248.80 : 187,873.59 = 30,479.00 : x
  2. Step 2: Convert to fraction form
    125,248.80/187,873.59 = 30,479.00/x
  3. Step 3: Cross multiply
    125,248.80x = 187,873.59 × 30,479.00
  4. Step 4: Simplify right side
    125,248.80x = 5,726,199,505.00
  5. Step 5: Solve for x
    x = 5,726,199,505.00/125,248.80
  6. Step 6: Final answer
    x = 45,718.60

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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.