Home / 136,080.23-187,761.71-82,354.55

Finding the Fourth Proportional to 136,080.23, 187,761.71 and 82,354.55

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Solution

The fourth proportional to 136,080.23, 187,761.71 and 82,354.55 is: 113,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,080.23 : 187,761.71 = 82,354.55 : x
  2. Step 2: Convert to fraction form
    136,080.23/187,761.71 = 82,354.55/x
  3. Step 3: Cross multiply
    136,080.23x = 187,761.71 × 82,354.55
  4. Step 4: Simplify right side
    136,080.23x = 15,463,030,401.36
  5. Step 5: Solve for x
    x = 15,463,030,401.36/136,080.23
  6. Step 6: Final answer
    x = 113,631.72

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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.