Home / 121,766.72-168,031.82-68,041.24

Finding the Fourth Proportional to 121,766.72, 168,031.82 and 68,041.24

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Solution

The fourth proportional to 121,766.72, 168,031.82 and 68,041.24 is: 93,893.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,766.72 : 168,031.82 = 68,041.24 : x
  2. Step 2: Convert to fraction form
    121,766.72/168,031.82 = 68,041.24/x
  3. Step 3: Cross multiply
    121,766.72x = 168,031.82 × 68,041.24
  4. Step 4: Simplify right side
    121,766.72x = 11,433,093,142.28
  5. Step 5: Solve for x
    x = 11,433,093,142.28/121,766.72
  6. Step 6: Final answer
    x = 93,893.42

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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.