Home / 126,140.58-188,996.78-76,115.57

Finding the Fourth Proportional to 126,140.58, 188,996.78 and 76,115.57

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Solution

The fourth proportional to 126,140.58, 188,996.78 and 76,115.57 is: 114,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,140.58 : 188,996.78 = 76,115.57 : x
  2. Step 2: Convert to fraction form
    126,140.58/188,996.78 = 76,115.57/x
  3. Step 3: Cross multiply
    126,140.58x = 188,996.78 × 76,115.57
  4. Step 4: Simplify right side
    126,140.58x = 14,385,596,312.30
  5. Step 5: Solve for x
    x = 14,385,596,312.30/126,140.58
  6. Step 6: Final answer
    x = 114,044.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.