Home / 153,966.85-231,027.08-87,458.05

Finding the Fourth Proportional to 153,966.85, 231,027.08 and 87,458.05

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Solution

The fourth proportional to 153,966.85, 231,027.08 and 87,458.05 is: 131,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,966.85 : 231,027.08 = 87,458.05 : x
  2. Step 2: Convert to fraction form
    153,966.85/231,027.08 = 87,458.05/x
  3. Step 3: Cross multiply
    153,966.85x = 231,027.08 × 87,458.05
  4. Step 4: Simplify right side
    153,966.85x = 20,205,177,476.70
  5. Step 5: Solve for x
    x = 20,205,177,476.70/153,966.85
  6. Step 6: Final answer
    x = 131,230.70

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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.