Home / 136,245.60-204,402.96-89,589.60

Finding the Fourth Proportional to 136,245.60, 204,402.96 and 89,589.60

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Solution

The fourth proportional to 136,245.60, 204,402.96 and 89,589.60 is: 134,407.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,245.60 : 204,402.96 = 89,589.60 : x
  2. Step 2: Convert to fraction form
    136,245.60/204,402.96 = 89,589.60/x
  3. Step 3: Cross multiply
    136,245.60x = 204,402.96 × 89,589.60
  4. Step 4: Simplify right side
    136,245.60x = 18,312,379,425.22
  5. Step 5: Solve for x
    x = 18,312,379,425.22/136,245.60
  6. Step 6: Final answer
    x = 134,407.13

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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.