Home / 126,141.58-188,998.27-76,116.57

Finding the Fourth Proportional to 126,141.58, 188,998.27 and 76,116.57

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Solution

The fourth proportional to 126,141.58, 188,998.27 and 76,116.57 is: 114,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,141.58 : 188,998.27 = 76,116.57 : x
  2. Step 2: Convert to fraction form
    126,141.58/188,998.27 = 76,116.57/x
  3. Step 3: Cross multiply
    126,141.58x = 188,998.27 × 76,116.57
  4. Step 4: Simplify right side
    126,141.58x = 14,385,900,048.33
  5. Step 5: Solve for x
    x = 14,385,900,048.33/126,141.58
  6. Step 6: Final answer
    x = 114,045.66

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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.