Home / 126,892.16-190,360.20-42,660.56

Finding the Fourth Proportional to 126,892.16, 190,360.20 and 42,660.56

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Solution

The fourth proportional to 126,892.16, 190,360.20 and 42,660.56 is: 63,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,892.16 : 190,360.20 = 42,660.56 : x
  2. Step 2: Convert to fraction form
    126,892.16/190,360.20 = 42,660.56/x
  3. Step 3: Cross multiply
    126,892.16x = 190,360.20 × 42,660.56
  4. Step 4: Simplify right side
    126,892.16x = 8,120,872,733.71
  5. Step 5: Solve for x
    x = 8,120,872,733.71/126,892.16
  6. Step 6: Final answer
    x = 63,998.22

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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.