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Finding the Fourth Proportional to 136,486.80, 204,730.20 and 83,925.90

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Solution

The fourth proportional to 136,486.80, 204,730.20 and 83,925.90 is: 125,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,486.80 : 204,730.20 = 83,925.90 : x
  2. Step 2: Convert to fraction form
    136,486.80/204,730.20 = 83,925.90/x
  3. Step 3: Cross multiply
    136,486.80x = 204,730.20 × 83,925.90
  4. Step 4: Simplify right side
    136,486.80x = 17,182,166,292.18
  5. Step 5: Solve for x
    x = 17,182,166,292.18/136,486.80
  6. Step 6: Final answer
    x = 125,888.85

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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.