Home / 117,855.38-162,644.04-66,870.23

Finding the Fourth Proportional to 117,855.38, 162,644.04 and 66,870.23

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Solution

The fourth proportional to 117,855.38, 162,644.04 and 66,870.23 is: 92,282.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,855.38 : 162,644.04 = 66,870.23 : x
  2. Step 2: Convert to fraction form
    117,855.38/162,644.04 = 66,870.23/x
  3. Step 3: Cross multiply
    117,855.38x = 162,644.04 × 66,870.23
  4. Step 4: Simplify right side
    117,855.38x = 10,876,044,362.93
  5. Step 5: Solve for x
    x = 10,876,044,362.93/117,855.38
  6. Step 6: Final answer
    x = 92,282.97

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1.5x scale

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.