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Finding the Fourth Proportional to 121,751.20, 182,626.80 and 88,314.40

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Solution

The fourth proportional to 121,751.20, 182,626.80 and 88,314.40 is: 132,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,751.20 : 182,626.80 = 88,314.40 : x
  2. Step 2: Convert to fraction form
    121,751.20/182,626.80 = 88,314.40/x
  3. Step 3: Cross multiply
    121,751.20x = 182,626.80 × 88,314.40
  4. Step 4: Simplify right side
    121,751.20x = 16,128,576,265.92
  5. Step 5: Solve for x
    x = 16,128,576,265.92/121,751.20
  6. Step 6: Final answer
    x = 132,471.60

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1.5x scale

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.