Home / 123,828.71-170,882.10-67,240.49

Finding the Fourth Proportional to 123,828.71, 170,882.10 and 67,240.49

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Solution

The fourth proportional to 123,828.71, 170,882.10 and 67,240.49 is: 92,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,828.71 : 170,882.10 = 67,240.49 : x
  2. Step 2: Convert to fraction form
    123,828.71/170,882.10 = 67,240.49/x
  3. Step 3: Cross multiply
    123,828.71x = 170,882.10 × 67,240.49
  4. Step 4: Simplify right side
    123,828.71x = 11,490,195,281.82
  5. Step 5: Solve for x
    x = 11,490,195,281.82/123,828.71
  6. Step 6: Final answer
    x = 92,791.05

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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.