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Finding the Fourth Proportional to 161,230, 222,501.18 and 89,613.04

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Solution

The fourth proportional to 161,230, 222,501.18 and 89,613.04 is: 123,668.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,230 : 222,501.18 = 89,613.04 : x
  2. Step 2: Convert to fraction form
    161,230/222,501.18 = 89,613.04/x
  3. Step 3: Cross multiply
    161,230x = 222,501.18 × 89,613.04
  4. Step 4: Simplify right side
    161,230x = 19,939,007,143.39
  5. Step 5: Solve for x
    x = 19,939,007,143.39/161,230
  6. Step 6: Final answer
    x = 123,668.10

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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.