Home / 83,917.30-125,944.80-83,261.20

Finding the Fourth Proportional to 83,917.30, 125,944.80 and 83,261.20

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Solution

The fourth proportional to 83,917.30, 125,944.80 and 83,261.20 is: 124,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,917.30 : 125,944.80 = 83,261.20 : x
  2. Step 2: Convert to fraction form
    83,917.30/125,944.80 = 83,261.20/x
  3. Step 3: Cross multiply
    83,917.30x = 125,944.80 × 83,261.20
  4. Step 4: Simplify right side
    83,917.30x = 10,486,315,181.76
  5. Step 5: Solve for x
    x = 10,486,315,181.76/83,917.30
  6. Step 6: Final answer
    x = 124,960.11

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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.