Home / 107,811.64-148,793.22-65,370.04

Finding the Fourth Proportional to 107,811.64, 148,793.22 and 65,370.04

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Solution

The fourth proportional to 107,811.64, 148,793.22 and 65,370.04 is: 90,218.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,811.64 : 148,793.22 = 65,370.04 : x
  2. Step 2: Convert to fraction form
    107,811.64/148,793.22 = 65,370.04/x
  3. Step 3: Cross multiply
    107,811.64x = 148,793.22 × 65,370.04
  4. Step 4: Simplify right side
    107,811.64x = 9,726,618,743.13
  5. Step 5: Solve for x
    x = 9,726,618,743.13/107,811.64
  6. Step 6: Final answer
    x = 90,218.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.