Home / 121,817.20-182,725.80-88,380.40

Finding the Fourth Proportional to 121,817.20, 182,725.80 and 88,380.40

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Solution

The fourth proportional to 121,817.20, 182,725.80 and 88,380.40 is: 132,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,817.20 : 182,725.80 = 88,380.40 : x
  2. Step 2: Convert to fraction form
    121,817.20/182,725.80 = 88,380.40/x
  3. Step 3: Cross multiply
    121,817.20x = 182,725.80 × 88,380.40
  4. Step 4: Simplify right side
    121,817.20x = 16,149,379,294.32
  5. Step 5: Solve for x
    x = 16,149,379,294.32/121,817.20
  6. Step 6: Final answer
    x = 132,570.60

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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.