Home / 126,776.07-190,203.90-76,233.29

Finding the Fourth Proportional to 126,776.07, 190,203.90 and 76,233.29

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Solution

The fourth proportional to 126,776.07, 190,203.90 and 76,233.29 is: 114,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,776.07 : 190,203.90 = 76,233.29 : x
  2. Step 2: Convert to fraction form
    126,776.07/190,203.90 = 76,233.29/x
  3. Step 3: Cross multiply
    126,776.07x = 190,203.90 × 76,233.29
  4. Step 4: Simplify right side
    126,776.07x = 14,499,867,830.94
  5. Step 5: Solve for x
    x = 14,499,867,830.94/126,776.07
  6. Step 6: Final answer
    x = 114,373.85

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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.