Home / 123,026.02-169,788.46-75,310.90

Finding the Fourth Proportional to 123,026.02, 169,788.46 and 75,310.90

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Solution

The fourth proportional to 123,026.02, 169,788.46 and 75,310.90 is: 103,936.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,026.02 : 169,788.46 = 75,310.90 : x
  2. Step 2: Convert to fraction form
    123,026.02/169,788.46 = 75,310.90/x
  3. Step 3: Cross multiply
    123,026.02x = 169,788.46 × 75,310.90
  4. Step 4: Simplify right side
    123,026.02x = 12,786,921,732.21
  5. Step 5: Solve for x
    x = 12,786,921,732.21/123,026.02
  6. Step 6: Final answer
    x = 103,936.73

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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.