Home / 107,445.20-161,167.80-82,610.60

Finding the Fourth Proportional to 107,445.20, 161,167.80 and 82,610.60

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Solution

The fourth proportional to 107,445.20, 161,167.80 and 82,610.60 is: 123,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,445.20 : 161,167.80 = 82,610.60 : x
  2. Step 2: Convert to fraction form
    107,445.20/161,167.80 = 82,610.60/x
  3. Step 3: Cross multiply
    107,445.20x = 161,167.80 × 82,610.60
  4. Step 4: Simplify right side
    107,445.20x = 13,314,168,658.68
  5. Step 5: Solve for x
    x = 13,314,168,658.68/107,445.20
  6. Step 6: Final answer
    x = 123,915.90

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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.