Home / 117,806.38-162,545.16-66,807.97

Finding the Fourth Proportional to 117,806.38, 162,545.16 and 66,807.97

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Solution

The fourth proportional to 117,806.38, 162,545.16 and 66,807.97 is: 92,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,806.38 : 162,545.16 = 66,807.97 : x
  2. Step 2: Convert to fraction form
    117,806.38/162,545.16 = 66,807.97/x
  3. Step 3: Cross multiply
    117,806.38x = 162,545.16 × 66,807.97
  4. Step 4: Simplify right side
    117,806.38x = 10,859,312,017.09
  5. Step 5: Solve for x
    x = 10,859,312,017.09/117,806.38
  6. Step 6: Final answer
    x = 92,179.32

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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.