Home / 127,940.56-176,371.07-89,579.22

Finding the Fourth Proportional to 127,940.56, 176,371.07 and 89,579.22

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Solution

The fourth proportional to 127,940.56, 176,371.07 and 89,579.22 is: 123,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,940.56 : 176,371.07 = 89,579.22 : x
  2. Step 2: Convert to fraction form
    127,940.56/176,371.07 = 89,579.22/x
  3. Step 3: Cross multiply
    127,940.56x = 176,371.07 × 89,579.22
  4. Step 4: Simplify right side
    127,940.56x = 15,799,182,275.76
  5. Step 5: Solve for x
    x = 15,799,182,275.76/127,940.56
  6. Step 6: Final answer
    x = 123,488.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.