Home / 126,933.68-190,440.31-76,387.85

Finding the Fourth Proportional to 126,933.68, 190,440.31 and 76,387.85

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Solution

The fourth proportional to 126,933.68, 190,440.31 and 76,387.85 is: 114,605.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,933.68 : 190,440.31 = 76,387.85 : x
  2. Step 2: Convert to fraction form
    126,933.68/190,440.31 = 76,387.85/x
  3. Step 3: Cross multiply
    126,933.68x = 190,440.31 × 76,387.85
  4. Step 4: Simplify right side
    126,933.68x = 14,547,326,119.36
  5. Step 5: Solve for x
    x = 14,547,326,119.36/126,933.68
  6. Step 6: Final answer
    x = 114,605.73

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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.