Home / 99,108.23-148,530.71-54,013.80

Finding the Fourth Proportional to 99,108.23, 148,530.71 and 54,013.80

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Solution

The fourth proportional to 99,108.23, 148,530.71 and 54,013.80 is: 80,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,108.23 : 148,530.71 = 54,013.80 : x
  2. Step 2: Convert to fraction form
    99,108.23/148,530.71 = 54,013.80/x
  3. Step 3: Cross multiply
    99,108.23x = 148,530.71 × 54,013.80
  4. Step 4: Simplify right side
    99,108.23x = 8,022,708,755.82
  5. Step 5: Solve for x
    x = 8,022,708,755.82/99,108.23
  6. Step 6: Final answer
    x = 80,948.97

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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.