Home / 120,928.47-166,874.09-67,211.63

Finding the Fourth Proportional to 120,928.47, 166,874.09 and 67,211.63

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Solution

The fourth proportional to 120,928.47, 166,874.09 and 67,211.63 is: 92,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,928.47 : 166,874.09 = 67,211.63 : x
  2. Step 2: Convert to fraction form
    120,928.47/166,874.09 = 67,211.63/x
  3. Step 3: Cross multiply
    120,928.47x = 166,874.09 × 67,211.63
  4. Step 4: Simplify right side
    120,928.47x = 11,215,879,593.67
  5. Step 5: Solve for x
    x = 11,215,879,593.67/120,928.47
  6. Step 6: Final answer
    x = 92,748.05

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1.5x scale

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.