Home / 120,729.89-166,587.77-69,734.52

Finding the Fourth Proportional to 120,729.89, 166,587.77 and 69,734.52

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Solution

The fourth proportional to 120,729.89, 166,587.77 and 69,734.52 is: 96,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,729.89 : 166,587.77 = 69,734.52 : x
  2. Step 2: Convert to fraction form
    120,729.89/166,587.77 = 69,734.52/x
  3. Step 3: Cross multiply
    120,729.89x = 166,587.77 × 69,734.52
  4. Step 4: Simplify right side
    120,729.89x = 11,616,918,353.16
  5. Step 5: Solve for x
    x = 11,616,918,353.16/120,729.89
  6. Step 6: Final answer
    x = 96,222.39

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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.