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Finding the Fourth Proportional to 129,925.20, 195,033.60 and 100,473.60

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Solution

The fourth proportional to 129,925.20, 195,033.60 and 100,473.60 is: 150,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,925.20 : 195,033.60 = 100,473.60 : x
  2. Step 2: Convert to fraction form
    129,925.20/195,033.60 = 100,473.60/x
  3. Step 3: Cross multiply
    129,925.20x = 195,033.60 × 100,473.60
  4. Step 4: Simplify right side
    129,925.20x = 19,595,727,912.96
  5. Step 5: Solve for x
    x = 19,595,727,912.96/129,925.20
  6. Step 6: Final answer
    x = 150,823.15

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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.