Home / 107,240.88-147,968.61-61,909.02

Finding the Fourth Proportional to 107,240.88, 147,968.61 and 61,909.02

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Solution

The fourth proportional to 107,240.88, 147,968.61 and 61,909.02 is: 85,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,240.88 : 147,968.61 = 61,909.02 : x
  2. Step 2: Convert to fraction form
    107,240.88/147,968.61 = 61,909.02/x
  3. Step 3: Cross multiply
    107,240.88x = 147,968.61 × 61,909.02
  4. Step 4: Simplify right side
    107,240.88x = 9,160,591,635.86
  5. Step 5: Solve for x
    x = 9,160,591,635.86/107,240.88
  6. Step 6: Final answer
    x = 85,420.71

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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.