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Finding the Fourth Proportional to 144,034.60, 215,987.10 and 55,258.60

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Solution

The fourth proportional to 144,034.60, 215,987.10 and 55,258.60 is: 82,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,034.60 : 215,987.10 = 55,258.60 : x
  2. Step 2: Convert to fraction form
    144,034.60/215,987.10 = 55,258.60/x
  3. Step 3: Cross multiply
    144,034.60x = 215,987.10 × 55,258.60
  4. Step 4: Simplify right side
    144,034.60x = 11,935,144,764.06
  5. Step 5: Solve for x
    x = 11,935,144,764.06/144,034.60
  6. Step 6: Final answer
    x = 82,863.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.