Home / 120,807.28-181,139.14-45,932.90

Finding the Fourth Proportional to 120,807.28, 181,139.14 and 45,932.90

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Solution

The fourth proportional to 120,807.28, 181,139.14 and 45,932.90 is: 68,872.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,807.28 : 181,139.14 = 45,932.90 : x
  2. Step 2: Convert to fraction form
    120,807.28/181,139.14 = 45,932.90/x
  3. Step 3: Cross multiply
    120,807.28x = 181,139.14 × 45,932.90
  4. Step 4: Simplify right side
    120,807.28x = 8,320,246,003.71
  5. Step 5: Solve for x
    x = 8,320,246,003.71/120,807.28
  6. Step 6: Final answer
    x = 68,872.06

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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.