Home / 120,774.60-181,885.20-110,000.88

Finding the Fourth Proportional to 120,774.60, 181,885.20 and 110,000.88

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Solution

The fourth proportional to 120,774.60, 181,885.20 and 110,000.88 is: 165,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,774.60 : 181,885.20 = 110,000.88 : x
  2. Step 2: Convert to fraction form
    120,774.60/181,885.20 = 110,000.88/x
  3. Step 3: Cross multiply
    120,774.60x = 181,885.20 × 110,000.88
  4. Step 4: Simplify right side
    120,774.60x = 20,007,532,058.98
  5. Step 5: Solve for x
    x = 20,007,532,058.98/120,774.60
  6. Step 6: Final answer
    x = 165,660.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.