Home / 122,976,102.15-169,707,013.65-67,221,757.44

Finding the Fourth Proportional to 122,976,102.15, 169,707,013.65 and 67,221,757.44

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Solution

The fourth proportional to 122,976,102.15, 169,707,013.65 and 67,221,757.44 is: 92,766,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,976,102.15 : 169,707,013.65 = 67,221,757.44 : x
  2. Step 2: Convert to fraction form
    122,976,102.15/169,707,013.65 = 67,221,757.44/x
  3. Step 3: Cross multiply
    122,976,102.15x = 169,707,013.65 × 67,221,757.44
  4. Step 4: Simplify right side
    122,976,102.15x = 11,408,003,707,447,070
  5. Step 5: Solve for x
    x = 11,408,003,707,447,070/122,976,102.15
  6. Step 6: Final answer
    x = 92,766,021.27

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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.