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Finding the Fourth Proportional to 136,179.40, 204,050.40 and 128,306.20

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Solution

The fourth proportional to 136,179.40, 204,050.40 and 128,306.20 is: 192,253.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,179.40 : 204,050.40 = 128,306.20 : x
  2. Step 2: Convert to fraction form
    136,179.40/204,050.40 = 128,306.20/x
  3. Step 3: Cross multiply
    136,179.40x = 204,050.40 × 128,306.20
  4. Step 4: Simplify right side
    136,179.40x = 26,180,931,432.48
  5. Step 5: Solve for x
    x = 26,180,931,432.48/136,179.40
  6. Step 6: Final answer
    x = 192,253.24

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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.