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Finding the Fourth Proportional to 136,000.10, 204,000.15 and 120,836.90

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Solution

The fourth proportional to 136,000.10, 204,000.15 and 120,836.90 is: 181,255.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,000.10 : 204,000.15 = 120,836.90 : x
  2. Step 2: Convert to fraction form
    136,000.10/204,000.15 = 120,836.90/x
  3. Step 3: Cross multiply
    136,000.10x = 204,000.15 × 120,836.90
  4. Step 4: Simplify right side
    136,000.10x = 24,650,745,725.54
  5. Step 5: Solve for x
    x = 24,650,745,725.54/136,000.10
  6. Step 6: Final answer
    x = 181,255.35

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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.