Home / 116,691.03-161,034.28-66,390.03

Finding the Fourth Proportional to 116,691.03, 161,034.28 and 66,390.03

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Solution

The fourth proportional to 116,691.03, 161,034.28 and 66,390.03 is: 91,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,691.03 : 161,034.28 = 66,390.03 : x
  2. Step 2: Convert to fraction form
    116,691.03/161,034.28 = 66,390.03/x
  3. Step 3: Cross multiply
    116,691.03x = 161,034.28 × 66,390.03
  4. Step 4: Simplify right side
    116,691.03x = 10,691,070,514.25
  5. Step 5: Solve for x
    x = 10,691,070,514.25/116,691.03
  6. Step 6: Final answer
    x = 91,618.61

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1.5x scale

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.