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Finding the Fourth Proportional to 132,479.39, 182,819.80 and 72,048.74

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Solution

The fourth proportional to 132,479.39, 182,819.80 and 72,048.74 is: 99,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,479.39 : 182,819.80 = 72,048.74 : x
  2. Step 2: Convert to fraction form
    132,479.39/182,819.80 = 72,048.74/x
  3. Step 3: Cross multiply
    132,479.39x = 182,819.80 × 72,048.74
  4. Step 4: Simplify right side
    132,479.39x = 13,171,936,237.05
  5. Step 5: Solve for x
    x = 13,171,936,237.05/132,479.39
  6. Step 6: Final answer
    x = 99,426.31

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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.