Home / 239,372.05-359,140.09-81,711.22

Finding the Fourth Proportional to 239,372.05, 359,140.09 and 81,711.22

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Solution

The fourth proportional to 239,372.05, 359,140.09 and 81,711.22 is: 122,594.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,372.05 : 359,140.09 = 81,711.22 : x
  2. Step 2: Convert to fraction form
    239,372.05/359,140.09 = 81,711.22/x
  3. Step 3: Cross multiply
    239,372.05x = 359,140.09 × 81,711.22
  4. Step 4: Simplify right side
    239,372.05x = 29,345,773,109.11
  5. Step 5: Solve for x
    x = 29,345,773,109.11/239,372.05
  6. Step 6: Final answer
    x = 122,594.82

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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.