Home / 123,308.27-170,148.33-68,853.78

Finding the Fourth Proportional to 123,308.27, 170,148.33 and 68,853.78

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Solution

The fourth proportional to 123,308.27, 170,148.33 and 68,853.78 is: 95,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,308.27 : 170,148.33 = 68,853.78 : x
  2. Step 2: Convert to fraction form
    123,308.27/170,148.33 = 68,853.78/x
  3. Step 3: Cross multiply
    123,308.27x = 170,148.33 × 68,853.78
  4. Step 4: Simplify right side
    123,308.27x = 11,715,355,681.19
  5. Step 5: Solve for x
    x = 11,715,355,681.19/123,308.27
  6. Step 6: Final answer
    x = 95,008.68

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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.