Home / 117,008.20-161,439.24-74,531.80

Finding the Fourth Proportional to 117,008.20, 161,439.24 and 74,531.80

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Solution

The fourth proportional to 117,008.20, 161,439.24 and 74,531.80 is: 102,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008.20 : 161,439.24 = 74,531.80 : x
  2. Step 2: Convert to fraction form
    117,008.20/161,439.24 = 74,531.80/x
  3. Step 3: Cross multiply
    117,008.20x = 161,439.24 × 74,531.80
  4. Step 4: Simplify right side
    117,008.20x = 12,032,357,147.83
  5. Step 5: Solve for x
    x = 12,032,357,147.83/117,008.20
  6. Step 6: Final answer
    x = 102,833.45

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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.