Home / 123,000.18-169,382.82-106,860.12

Finding the Fourth Proportional to 123,000.18, 169,382.82 and 106,860.12

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Solution

The fourth proportional to 123,000.18, 169,382.82 and 106,860.12 is: 147,156.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,000.18 : 169,382.82 = 106,860.12 : x
  2. Step 2: Convert to fraction form
    123,000.18/169,382.82 = 106,860.12/x
  3. Step 3: Cross multiply
    123,000.18x = 169,382.82 × 106,860.12
  4. Step 4: Simplify right side
    123,000.18x = 18,100,268,471.14
  5. Step 5: Solve for x
    x = 18,100,268,471.14/123,000.18
  6. Step 6: Final answer
    x = 147,156.44

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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.