Home / 161,072.85-222,207.60-103,691.61

Finding the Fourth Proportional to 161,072.85, 222,207.60 and 103,691.61

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Solution

The fourth proportional to 161,072.85, 222,207.60 and 103,691.61 is: 143,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,072.85 : 222,207.60 = 103,691.61 : x
  2. Step 2: Convert to fraction form
    161,072.85/222,207.60 = 103,691.61/x
  3. Step 3: Cross multiply
    161,072.85x = 222,207.60 × 103,691.61
  4. Step 4: Simplify right side
    161,072.85x = 23,041,063,798.24
  5. Step 5: Solve for x
    x = 23,041,063,798.24/161,072.85
  6. Step 6: Final answer
    x = 143,047.47

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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.