Home / 126,999.71-190,531.25-89,632.78

Finding the Fourth Proportional to 126,999.71, 190,531.25 and 89,632.78

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Solution

The fourth proportional to 126,999.71, 190,531.25 and 89,632.78 is: 134,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,999.71 : 190,531.25 = 89,632.78 : x
  2. Step 2: Convert to fraction form
    126,999.71/190,531.25 = 89,632.78/x
  3. Step 3: Cross multiply
    126,999.71x = 190,531.25 × 89,632.78
  4. Step 4: Simplify right side
    126,999.71x = 17,077,845,614.38
  5. Step 5: Solve for x
    x = 17,077,845,614.38/126,999.71
  6. Step 6: Final answer
    x = 134,471.53

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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.