Home / 120,880.66-181,340.43-50,780.02

Finding the Fourth Proportional to 120,880.66, 181,340.43 and 50,780.02

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Solution

The fourth proportional to 120,880.66, 181,340.43 and 50,780.02 is: 76,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,880.66 : 181,340.43 = 50,780.02 : x
  2. Step 2: Convert to fraction form
    120,880.66/181,340.43 = 50,780.02/x
  3. Step 3: Cross multiply
    120,880.66x = 181,340.43 × 50,780.02
  4. Step 4: Simplify right side
    120,880.66x = 9,208,470,662.21
  5. Step 5: Solve for x
    x = 9,208,470,662.21/120,880.66
  6. Step 6: Final answer
    x = 76,178.20

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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.