Home / 125,781.02-173,578.29-68,420.34

Finding the Fourth Proportional to 125,781.02, 173,578.29 and 68,420.34

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Solution

The fourth proportional to 125,781.02, 173,578.29 and 68,420.34 is: 94,420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,781.02 : 173,578.29 = 68,420.34 : x
  2. Step 2: Convert to fraction form
    125,781.02/173,578.29 = 68,420.34/x
  3. Step 3: Cross multiply
    125,781.02x = 173,578.29 × 68,420.34
  4. Step 4: Simplify right side
    125,781.02x = 11,876,285,618.42
  5. Step 5: Solve for x
    x = 11,876,285,618.42/125,781.02
  6. Step 6: Final answer
    x = 94,420.33

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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.