Home / 123,069,127.25-169,887,689.40-76,682,299.56

Finding the Fourth Proportional to 123,069,127.25, 169,887,689.40 and 76,682,299.56

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Solution

The fourth proportional to 123,069,127.25, 169,887,689.40 and 76,682,299.56 is: 105,854,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,069,127.25 : 169,887,689.40 = 76,682,299.56 : x
  2. Step 2: Convert to fraction form
    123,069,127.25/169,887,689.40 = 76,682,299.56/x
  3. Step 3: Cross multiply
    123,069,127.25x = 169,887,689.40 × 76,682,299.56
  4. Step 4: Simplify right side
    123,069,127.25x = 13,027,378,690,127,038
  5. Step 5: Solve for x
    x = 13,027,378,690,127,038/123,069,127.25
  6. Step 6: Final answer
    x = 105,854,156.78

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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.