Home / 99,234.40-148,851.60-91,631.20

Finding the Fourth Proportional to 99,234.40, 148,851.60 and 91,631.20

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Solution

The fourth proportional to 99,234.40, 148,851.60 and 91,631.20 is: 137,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,234.40 : 148,851.60 = 91,631.20 : x
  2. Step 2: Convert to fraction form
    99,234.40/148,851.60 = 91,631.20/x
  3. Step 3: Cross multiply
    99,234.40x = 148,851.60 × 91,631.20
  4. Step 4: Simplify right side
    99,234.40x = 13,639,450,729.92
  5. Step 5: Solve for x
    x = 13,639,450,729.92/99,234.40
  6. Step 6: Final answer
    x = 137,446.80

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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.