Home / 99,654.20-137,445.03-63,847.56

Finding the Fourth Proportional to 99,654.20, 137,445.03 and 63,847.56

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Solution

The fourth proportional to 99,654.20, 137,445.03 and 63,847.56 is: 88,059.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,654.20 : 137,445.03 = 63,847.56 : x
  2. Step 2: Convert to fraction form
    99,654.20/137,445.03 = 63,847.56/x
  3. Step 3: Cross multiply
    99,654.20x = 137,445.03 × 63,847.56
  4. Step 4: Simplify right side
    99,654.20x = 8,775,529,799.63
  5. Step 5: Solve for x
    x = 8,775,529,799.63/99,654.20
  6. Step 6: Final answer
    x = 88,059.81

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1.5x scale

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.