Home / 120,690.55-181,051.73-44,778.76

Finding the Fourth Proportional to 120,690.55, 181,051.73 and 44,778.76

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Solution

The fourth proportional to 120,690.55, 181,051.73 and 44,778.76 is: 67,174.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,690.55 : 181,051.73 = 44,778.76 : x
  2. Step 2: Convert to fraction form
    120,690.55/181,051.73 = 44,778.76/x
  3. Step 3: Cross multiply
    120,690.55x = 181,051.73 × 44,778.76
  4. Step 4: Simplify right side
    120,690.55x = 8,107,271,965.25
  5. Step 5: Solve for x
    x = 8,107,271,965.25/120,690.55
  6. Step 6: Final answer
    x = 67,174.04

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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.