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Finding the Fourth Proportional to 144,250.60, 216,375.90 and 85,114.60

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Solution

The fourth proportional to 144,250.60, 216,375.90 and 85,114.60 is: 127,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,250.60 : 216,375.90 = 85,114.60 : x
  2. Step 2: Convert to fraction form
    144,250.60/216,375.90 = 85,114.60/x
  3. Step 3: Cross multiply
    144,250.60x = 216,375.90 × 85,114.60
  4. Step 4: Simplify right side
    144,250.60x = 18,416,748,178.14
  5. Step 5: Solve for x
    x = 18,416,748,178.14/144,250.60
  6. Step 6: Final answer
    x = 127,671.90

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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.