Home / 120,919.56-181,398.12-61,723.20

Finding the Fourth Proportional to 120,919.56, 181,398.12 and 61,723.20

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Solution

The fourth proportional to 120,919.56, 181,398.12 and 61,723.20 is: 92,594.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,919.56 : 181,398.12 = 61,723.20 : x
  2. Step 2: Convert to fraction form
    120,919.56/181,398.12 = 61,723.20/x
  3. Step 3: Cross multiply
    120,919.56x = 181,398.12 × 61,723.20
  4. Step 4: Simplify right side
    120,919.56x = 11,196,472,440.38
  5. Step 5: Solve for x
    x = 11,196,472,440.38/120,919.56
  6. Step 6: Final answer
    x = 92,594.39

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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.