Home / 120,911.83-181,371.78-54,352.16

Finding the Fourth Proportional to 120,911.83, 181,371.78 and 54,352.16

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Solution

The fourth proportional to 120,911.83, 181,371.78 and 54,352.16 is: 81,530.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,911.83 : 181,371.78 = 54,352.16 : x
  2. Step 2: Convert to fraction form
    120,911.83/181,371.78 = 54,352.16/x
  3. Step 3: Cross multiply
    120,911.83x = 181,371.78 × 54,352.16
  4. Step 4: Simplify right side
    120,911.83x = 9,857,948,006.04
  5. Step 5: Solve for x
    x = 9,857,948,006.04/120,911.83
  6. Step 6: Final answer
    x = 81,530.05

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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.