Home / 121,921.90-182,889.98-47,042.44

Finding the Fourth Proportional to 121,921.90, 182,889.98 and 47,042.44

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Solution

The fourth proportional to 121,921.90, 182,889.98 and 47,042.44 is: 70,566.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,921.90 : 182,889.98 = 47,042.44 : x
  2. Step 2: Convert to fraction form
    121,921.90/182,889.98 = 47,042.44/x
  3. Step 3: Cross multiply
    121,921.90x = 182,889.98 × 47,042.44
  4. Step 4: Simplify right side
    121,921.90x = 8,603,590,910.75
  5. Step 5: Solve for x
    x = 8,603,590,910.75/121,921.90
  6. Step 6: Final answer
    x = 70,566.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.