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Finding the Fourth Proportional to 132,348.60, 182,428.74 and 103,619.88

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Solution

The fourth proportional to 132,348.60, 182,428.74 and 103,619.88 is: 142,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,348.60 : 182,428.74 = 103,619.88 : x
  2. Step 2: Convert to fraction form
    132,348.60/182,428.74 = 103,619.88/x
  3. Step 3: Cross multiply
    132,348.60x = 182,428.74 × 103,619.88
  4. Step 4: Simplify right side
    132,348.60x = 18,903,244,147.35
  5. Step 5: Solve for x
    x = 18,903,244,147.35/132,348.60
  6. Step 6: Final answer
    x = 142,829.20

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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.