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Finding the Fourth Proportional to 132,597.39, 182,984.40 and 72,168.47

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Solution

The fourth proportional to 132,597.39, 182,984.40 and 72,168.47 is: 99,592.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,597.39 : 182,984.40 = 72,168.47 : x
  2. Step 2: Convert to fraction form
    132,597.39/182,984.40 = 72,168.47/x
  3. Step 3: Cross multiply
    132,597.39x = 182,984.40 × 72,168.47
  4. Step 4: Simplify right side
    132,597.39x = 13,205,704,181.87
  5. Step 5: Solve for x
    x = 13,205,704,181.87/132,597.39
  6. Step 6: Final answer
    x = 99,592.49

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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.