Home / 91,739.18-137,608.89-25,180.22

Finding the Fourth Proportional to 91,739.18, 137,608.89 and 25,180.22

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Solution

The fourth proportional to 91,739.18, 137,608.89 and 25,180.22 is: 37,770.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,739.18 : 137,608.89 = 25,180.22 : x
  2. Step 2: Convert to fraction form
    91,739.18/137,608.89 = 25,180.22/x
  3. Step 3: Cross multiply
    91,739.18x = 137,608.89 × 25,180.22
  4. Step 4: Simplify right side
    91,739.18x = 3,465,022,124.16
  5. Step 5: Solve for x
    x = 3,465,022,124.16/91,739.18
  6. Step 6: Final answer
    x = 37,770.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.