Home / 124,712,649.72-172,099,893.78-68,957,109.72

Finding the Fourth Proportional to 124,712,649.72, 172,099,893.78 and 68,957,109.72

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Solution

The fourth proportional to 124,712,649.72, 172,099,893.78 and 68,957,109.72 is: 95,158,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,712,649.72 : 172,099,893.78 = 68,957,109.72 : x
  2. Step 2: Convert to fraction form
    124,712,649.72/172,099,893.78 = 68,957,109.72/x
  3. Step 3: Cross multiply
    124,712,649.72x = 172,099,893.78 × 68,957,109.72
  4. Step 4: Simplify right side
    124,712,649.72x = 11,867,511,258,187,806
  5. Step 5: Solve for x
    x = 11,867,511,258,187,806/124,712,649.72
  6. Step 6: Final answer
    x = 95,158,841.42

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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.