Home / 123,301.27-170,155.74-66,712.65

Finding the Fourth Proportional to 123,301.27, 170,155.74 and 66,712.65

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Solution

The fourth proportional to 123,301.27, 170,155.74 and 66,712.65 is: 92,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,301.27 : 170,155.74 = 66,712.65 : x
  2. Step 2: Convert to fraction form
    123,301.27/170,155.74 = 66,712.65/x
  3. Step 3: Cross multiply
    123,301.27x = 170,155.74 × 66,712.65
  4. Step 4: Simplify right side
    123,301.27x = 11,351,539,940.20
  5. Step 5: Solve for x
    x = 11,351,539,940.20/123,301.27
  6. Step 6: Final answer
    x = 92,063.45

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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.