Home / 87,613.40-131,429.70-84,848.60

Finding the Fourth Proportional to 87,613.40, 131,429.70 and 84,848.60

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Solution

The fourth proportional to 87,613.40, 131,429.70 and 84,848.60 is: 127,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,613.40 : 131,429.70 = 84,848.60 : x
  2. Step 2: Convert to fraction form
    87,613.40/131,429.70 = 84,848.60/x
  3. Step 3: Cross multiply
    87,613.40x = 131,429.70 × 84,848.60
  4. Step 4: Simplify right side
    87,613.40x = 11,151,626,043.42
  5. Step 5: Solve for x
    x = 11,151,626,043.42/87,613.40
  6. Step 6: Final answer
    x = 127,282.20

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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.