Home / 121,084.11-181,624.33-54,477.20

Finding the Fourth Proportional to 121,084.11, 181,624.33 and 54,477.20

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Solution

The fourth proportional to 121,084.11, 181,624.33 and 54,477.20 is: 81,714.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,084.11 : 181,624.33 = 54,477.20 : x
  2. Step 2: Convert to fraction form
    121,084.11/181,624.33 = 54,477.20/x
  3. Step 3: Cross multiply
    121,084.11x = 181,624.33 × 54,477.20
  4. Step 4: Simplify right side
    121,084.11x = 9,894,384,496.22
  5. Step 5: Solve for x
    x = 9,894,384,496.22/121,084.11
  6. Step 6: Final answer
    x = 81,714.97

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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.