Home / 99,316.10-148,974.15-88,429.70

Finding the Fourth Proportional to 99,316.10, 148,974.15 and 88,429.70

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Solution

The fourth proportional to 99,316.10, 148,974.15 and 88,429.70 is: 132,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,316.10 : 148,974.15 = 88,429.70 : x
  2. Step 2: Convert to fraction form
    99,316.10/148,974.15 = 88,429.70/x
  3. Step 3: Cross multiply
    99,316.10x = 148,974.15 × 88,429.70
  4. Step 4: Simplify right side
    99,316.10x = 13,173,739,392.26
  5. Step 5: Solve for x
    x = 13,173,739,392.26/99,316.10
  6. Step 6: Final answer
    x = 132,644.55

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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.