Home / 123,754.23-170,781.30-67,165.65

Finding the Fourth Proportional to 123,754.23, 170,781.30 and 67,165.65

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Solution

The fourth proportional to 123,754.23, 170,781.30 and 67,165.65 is: 92,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,754.23 : 170,781.30 = 67,165.65 : x
  2. Step 2: Convert to fraction form
    123,754.23/170,781.30 = 67,165.65/x
  3. Step 3: Cross multiply
    123,754.23x = 170,781.30 × 67,165.65
  4. Step 4: Simplify right side
    123,754.23x = 11,470,637,022.35
  5. Step 5: Solve for x
    x = 11,470,637,022.35/123,754.23
  6. Step 6: Final answer
    x = 92,688.85

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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.