Home / 99,412.75-137,189.60-54,700.75

Finding the Fourth Proportional to 99,412.75, 137,189.60 and 54,700.75

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Solution

The fourth proportional to 99,412.75, 137,189.60 and 54,700.75 is: 75,487.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,412.75 : 137,189.60 = 54,700.75 : x
  2. Step 2: Convert to fraction form
    99,412.75/137,189.60 = 54,700.75/x
  3. Step 3: Cross multiply
    99,412.75x = 137,189.60 × 54,700.75
  4. Step 4: Simplify right side
    99,412.75x = 7,504,374,012.20
  5. Step 5: Solve for x
    x = 7,504,374,012.20/99,412.75
  6. Step 6: Final answer
    x = 75,487.04

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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.