Home / 120,870.62-181,278.57-45,964.04

Finding the Fourth Proportional to 120,870.62, 181,278.57 and 45,964.04

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Solution

The fourth proportional to 120,870.62, 181,278.57 and 45,964.04 is: 68,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,870.62 : 181,278.57 = 45,964.04 : x
  2. Step 2: Convert to fraction form
    120,870.62/181,278.57 = 45,964.04/x
  3. Step 3: Cross multiply
    120,870.62x = 181,278.57 × 45,964.04
  4. Step 4: Simplify right side
    120,870.62x = 8,332,294,536.23
  5. Step 5: Solve for x
    x = 8,332,294,536.23/120,870.62
  6. Step 6: Final answer
    x = 68,935.65

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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.