Home / 120,920.56-181,399.62-61,724.20

Finding the Fourth Proportional to 120,920.56, 181,399.62 and 61,724.20

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Solution

The fourth proportional to 120,920.56, 181,399.62 and 61,724.20 is: 92,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,920.56 : 181,399.62 = 61,724.20 : x
  2. Step 2: Convert to fraction form
    120,920.56/181,399.62 = 61,724.20/x
  3. Step 3: Cross multiply
    120,920.56x = 181,399.62 × 61,724.20
  4. Step 4: Simplify right side
    120,920.56x = 11,196,746,424.80
  5. Step 5: Solve for x
    x = 11,196,746,424.80/120,920.56
  6. Step 6: Final answer
    x = 92,595.89

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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.