Home / 123,069,178.28-169,887,760.08-76,682,351

Finding the Fourth Proportional to 123,069,178.28, 169,887,760.08 and 76,682,351

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Solution

The fourth proportional to 123,069,178.28, 169,887,760.08 and 76,682,351 is: 105,854,227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,069,178.28 : 169,887,760.08 = 76,682,351 : x
  2. Step 2: Convert to fraction form
    123,069,178.28/169,887,760.08 = 76,682,351/x
  3. Step 3: Cross multiply
    123,069,178.28x = 169,887,760.08 × 76,682,351
  4. Step 4: Simplify right side
    123,069,178.28x = 13,027,392,849,058,350
  5. Step 5: Solve for x
    x = 13,027,392,849,058,350/123,069,178.28
  6. Step 6: Final answer
    x = 105,854,227.93

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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.