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Finding the Fourth Proportional to 115,230.40, 173,234.40 and 98,123.20

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Solution

The fourth proportional to 115,230.40, 173,234.40 and 98,123.20 is: 147,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,230.40 : 173,234.40 = 98,123.20 : x
  2. Step 2: Convert to fraction form
    115,230.40/173,234.40 = 98,123.20/x
  3. Step 3: Cross multiply
    115,230.40x = 173,234.40 × 98,123.20
  4. Step 4: Simplify right side
    115,230.40x = 16,998,313,678.08
  5. Step 5: Solve for x
    x = 16,998,313,678.08/115,230.40
  6. Step 6: Final answer
    x = 147,515.88

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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.