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Finding the Fourth Proportional to 136,577.80, 204,866.70 and 83,433.70

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Solution

The fourth proportional to 136,577.80, 204,866.70 and 83,433.70 is: 125,150.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,577.80 : 204,866.70 = 83,433.70 : x
  2. Step 2: Convert to fraction form
    136,577.80/204,866.70 = 83,433.70/x
  3. Step 3: Cross multiply
    136,577.80x = 204,866.70 × 83,433.70
  4. Step 4: Simplify right side
    136,577.80x = 17,092,786,787.79
  5. Step 5: Solve for x
    x = 17,092,786,787.79/136,577.80
  6. Step 6: Final answer
    x = 125,150.55

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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.