Home / 161,287.72-222,566.67-89,665.90

Finding the Fourth Proportional to 161,287.72, 222,566.67 and 89,665.90

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Solution

The fourth proportional to 161,287.72, 222,566.67 and 89,665.90 is: 123,733.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,287.72 : 222,566.67 = 89,665.90 : x
  2. Step 2: Convert to fraction form
    161,287.72/222,566.67 = 89,665.90/x
  3. Step 3: Cross multiply
    161,287.72x = 222,566.67 × 89,665.90
  4. Step 4: Simplify right side
    161,287.72x = 19,956,640,775.55
  5. Step 5: Solve for x
    x = 19,956,640,775.55/161,287.72
  6. Step 6: Final answer
    x = 123,733.17

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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.