Home / 120,870.60-181,278.57-45,964.05

Finding the Fourth Proportional to 120,870.60, 181,278.57 and 45,964.05

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Solution

The fourth proportional to 120,870.60, 181,278.57 and 45,964.05 is: 68,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,870.60 : 181,278.57 = 45,964.05 : x
  2. Step 2: Convert to fraction form
    120,870.60/181,278.57 = 45,964.05/x
  3. Step 3: Cross multiply
    120,870.60x = 181,278.57 × 45,964.05
  4. Step 4: Simplify right side
    120,870.60x = 8,332,297,255.41
  5. Step 5: Solve for x
    x = 8,332,297,255.41/120,870.60
  6. Step 6: Final answer
    x = 68,935.68

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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.