Home / 122,900.88-169,625.62-71,910.66

Finding the Fourth Proportional to 122,900.88, 169,625.62 and 71,910.66

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Solution

The fourth proportional to 122,900.88, 169,625.62 and 71,910.66 is: 99,249.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,900.88 : 169,625.62 = 71,910.66 : x
  2. Step 2: Convert to fraction form
    122,900.88/169,625.62 = 71,910.66/x
  3. Step 3: Cross multiply
    122,900.88x = 169,625.62 × 71,910.66
  4. Step 4: Simplify right side
    122,900.88x = 12,197,890,287.11
  5. Step 5: Solve for x
    x = 12,197,890,287.11/122,900.88
  6. Step 6: Final answer
    x = 99,249.82

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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.