Home / 161,042.52-222,234.36-89,420.64

Finding the Fourth Proportional to 161,042.52, 222,234.36 and 89,420.64

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Solution

The fourth proportional to 161,042.52, 222,234.36 and 89,420.64 is: 123,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,042.52 : 222,234.36 = 89,420.64 : x
  2. Step 2: Convert to fraction form
    161,042.52/222,234.36 = 89,420.64/x
  3. Step 3: Cross multiply
    161,042.52x = 222,234.36 × 89,420.64
  4. Step 4: Simplify right side
    161,042.52x = 19,872,338,701.19
  5. Step 5: Solve for x
    x = 19,872,338,701.19/161,042.52
  6. Step 6: Final answer
    x = 123,398.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.