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Finding the Fourth Proportional to 135,281.80, 202,922.70 and 88,587.40

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Solution

The fourth proportional to 135,281.80, 202,922.70 and 88,587.40 is: 132,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,281.80 : 202,922.70 = 88,587.40 : x
  2. Step 2: Convert to fraction form
    135,281.80/202,922.70 = 88,587.40/x
  3. Step 3: Cross multiply
    135,281.80x = 202,922.70 × 88,587.40
  4. Step 4: Simplify right side
    135,281.80x = 17,976,394,393.98
  5. Step 5: Solve for x
    x = 17,976,394,393.98/135,281.80
  6. Step 6: Final answer
    x = 132,881.10

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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.