Home / 99,191.16-148,732.07-51,687.70

Finding the Fourth Proportional to 99,191.16, 148,732.07 and 51,687.70

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Solution

The fourth proportional to 99,191.16, 148,732.07 and 51,687.70 is: 77,503.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,191.16 : 148,732.07 = 51,687.70 : x
  2. Step 2: Convert to fraction form
    99,191.16/148,732.07 = 51,687.70/x
  3. Step 3: Cross multiply
    99,191.16x = 148,732.07 × 51,687.70
  4. Step 4: Simplify right side
    99,191.16x = 7,687,617,984.27
  5. Step 5: Solve for x
    x = 7,687,617,984.27/99,191.16
  6. Step 6: Final answer
    x = 77,503.06

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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.