Home / 99,132.52-148,473.07-77,651.13

Finding the Fourth Proportional to 99,132.52, 148,473.07 and 77,651.13

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Solution

The fourth proportional to 99,132.52, 148,473.07 and 77,651.13 is: 116,299.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,132.52 : 148,473.07 = 77,651.13 : x
  2. Step 2: Convert to fraction form
    99,132.52/148,473.07 = 77,651.13/x
  3. Step 3: Cross multiply
    99,132.52x = 148,473.07 × 77,651.13
  4. Step 4: Simplify right side
    99,132.52x = 11,529,101,660.07
  5. Step 5: Solve for x
    x = 11,529,101,660.07/99,132.52
  6. Step 6: Final answer
    x = 116,299.89

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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.