Home / 123,306.13-170,162.67-66,717.52

Finding the Fourth Proportional to 123,306.13, 170,162.67 and 66,717.52

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Solution

The fourth proportional to 123,306.13, 170,162.67 and 66,717.52 is: 92,070.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,306.13 : 170,162.67 = 66,717.52 : x
  2. Step 2: Convert to fraction form
    123,306.13/170,162.67 = 66,717.52/x
  3. Step 3: Cross multiply
    123,306.13x = 170,162.67 × 66,717.52
  4. Step 4: Simplify right side
    123,306.13x = 11,352,831,338.98
  5. Step 5: Solve for x
    x = 11,352,831,338.98/123,306.13
  6. Step 6: Final answer
    x = 92,070.29

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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.