Home / 132,546.57-182,908.78-72,117.45

Finding the Fourth Proportional to 132,546.57, 182,908.78 and 72,117.45

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Solution

The fourth proportional to 132,546.57, 182,908.78 and 72,117.45 is: 99,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,546.57 : 182,908.78 = 72,117.45 : x
  2. Step 2: Convert to fraction form
    132,546.57/182,908.78 = 72,117.45/x
  3. Step 3: Cross multiply
    132,546.57x = 182,908.78 × 72,117.45
  4. Step 4: Simplify right side
    132,546.57x = 13,190,914,796.21
  5. Step 5: Solve for x
    x = 13,190,914,796.21/132,546.57
  6. Step 6: Final answer
    x = 99,519.10

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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.