Home / 126,882.16-190,345.20-42,650.56

Finding the Fourth Proportional to 126,882.16, 190,345.20 and 42,650.56

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Solution

The fourth proportional to 126,882.16, 190,345.20 and 42,650.56 is: 63,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,882.16 : 190,345.20 = 42,650.56 : x
  2. Step 2: Convert to fraction form
    126,882.16/190,345.20 = 42,650.56/x
  3. Step 3: Cross multiply
    126,882.16x = 190,345.20 × 42,650.56
  4. Step 4: Simplify right side
    126,882.16x = 8,118,329,373.31
  5. Step 5: Solve for x
    x = 8,118,329,373.31/126,882.16
  6. Step 6: Final answer
    x = 63,983.22

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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.