Home / 120,869.54-181,304.38-45,972.40

Finding the Fourth Proportional to 120,869.54, 181,304.38 and 45,972.40

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Solution

The fourth proportional to 120,869.54, 181,304.38 and 45,972.40 is: 68,958.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,869.54 : 181,304.38 = 45,972.40 : x
  2. Step 2: Convert to fraction form
    120,869.54/181,304.38 = 45,972.40/x
  3. Step 3: Cross multiply
    120,869.54x = 181,304.38 × 45,972.40
  4. Step 4: Simplify right side
    120,869.54x = 8,334,997,479.11
  5. Step 5: Solve for x
    x = 8,334,997,479.11/120,869.54
  6. Step 6: Final answer
    x = 68,958.63

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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.