Home / 120,869.78-181,304.66-45,972.62

Finding the Fourth Proportional to 120,869.78, 181,304.66 and 45,972.62

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Solution

The fourth proportional to 120,869.78, 181,304.66 and 45,972.62 is: 68,958.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,869.78 : 181,304.66 = 45,972.62 : x
  2. Step 2: Convert to fraction form
    120,869.78/181,304.66 = 45,972.62/x
  3. Step 3: Cross multiply
    120,869.78x = 181,304.66 × 45,972.62
  4. Step 4: Simplify right side
    120,869.78x = 8,335,049,102.02
  5. Step 5: Solve for x
    x = 8,335,049,102.02/120,869.78
  6. Step 6: Final answer
    x = 68,958.92

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1.5x scale

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.