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Finding the Fourth Proportional to 125,079.20, 187,657.20 and 98,794.40

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Solution

The fourth proportional to 125,079.20, 187,657.20 and 98,794.40 is: 148,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,079.20 : 187,657.20 = 98,794.40 : x
  2. Step 2: Convert to fraction form
    125,079.20/187,657.20 = 98,794.40/x
  3. Step 3: Cross multiply
    125,079.20x = 187,657.20 × 98,794.40
  4. Step 4: Simplify right side
    125,079.20x = 18,539,480,479.68
  5. Step 5: Solve for x
    x = 18,539,480,479.68/125,079.20
  6. Step 6: Final answer
    x = 148,221.93

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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.