Home / 91,168.38-125,909.37-69,425.55

Finding the Fourth Proportional to 91,168.38, 125,909.37 and 69,425.55

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Solution

The fourth proportional to 91,168.38, 125,909.37 and 69,425.55 is: 95,881.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,168.38 : 125,909.37 = 69,425.55 : x
  2. Step 2: Convert to fraction form
    91,168.38/125,909.37 = 69,425.55/x
  3. Step 3: Cross multiply
    91,168.38x = 125,909.37 × 69,425.55
  4. Step 4: Simplify right side
    91,168.38x = 8,741,327,262.40
  5. Step 5: Solve for x
    x = 8,741,327,262.40/91,168.38
  6. Step 6: Final answer
    x = 95,881.13

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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.