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Finding the Fourth Proportional to 134,871.20, 202,537.20 and 88,330.40

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Solution

The fourth proportional to 134,871.20, 202,537.20 and 88,330.40 is: 132,646.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,871.20 : 202,537.20 = 88,330.40 : x
  2. Step 2: Convert to fraction form
    134,871.20/202,537.20 = 88,330.40/x
  3. Step 3: Cross multiply
    134,871.20x = 202,537.20 × 88,330.40
  4. Step 4: Simplify right side
    134,871.20x = 17,890,191,890.88
  5. Step 5: Solve for x
    x = 17,890,191,890.88/134,871.20
  6. Step 6: Final answer
    x = 132,646.49

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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.