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Finding the Fourth Proportional to 119,614.40, 179,421.60 and 88,121.60

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Solution

The fourth proportional to 119,614.40, 179,421.60 and 88,121.60 is: 132,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,614.40 : 179,421.60 = 88,121.60 : x
  2. Step 2: Convert to fraction form
    119,614.40/179,421.60 = 88,121.60/x
  3. Step 3: Cross multiply
    119,614.40x = 179,421.60 × 88,121.60
  4. Step 4: Simplify right side
    119,614.40x = 15,810,918,466.56
  5. Step 5: Solve for x
    x = 15,810,918,466.56/119,614.40
  6. Step 6: Final answer
    x = 132,182.40

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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.