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Finding the Fourth Proportional to 130,025.39, 194,722.80 and 89,931.85

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Solution

The fourth proportional to 130,025.39, 194,722.80 and 89,931.85 is: 134,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,025.39 : 194,722.80 = 89,931.85 : x
  2. Step 2: Convert to fraction form
    130,025.39/194,722.80 = 89,931.85/x
  3. Step 3: Cross multiply
    130,025.39x = 194,722.80 × 89,931.85
  4. Step 4: Simplify right side
    130,025.39x = 17,511,781,191.52
  5. Step 5: Solve for x
    x = 17,511,781,191.52/130,025.39
  6. Step 6: Final answer
    x = 134,679.71

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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.