Home / 136,724.20-205,086.30-83,962.60

Finding the Fourth Proportional to 136,724.20, 205,086.30 and 83,962.60

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Solution

The fourth proportional to 136,724.20, 205,086.30 and 83,962.60 is: 125,943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,724.20 : 205,086.30 = 83,962.60 : x
  2. Step 2: Convert to fraction form
    136,724.20/205,086.30 = 83,962.60/x
  3. Step 3: Cross multiply
    136,724.20x = 205,086.30 × 83,962.60
  4. Step 4: Simplify right side
    136,724.20x = 17,219,578,972.38
  5. Step 5: Solve for x
    x = 17,219,578,972.38/136,724.20
  6. Step 6: Final answer
    x = 125,943.90

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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.