Home / 120,469.28-180,458.49-57,097.31

Finding the Fourth Proportional to 120,469.28, 180,458.49 and 57,097.31

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Solution

The fourth proportional to 120,469.28, 180,458.49 and 57,097.31 is: 85,529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,469.28 : 180,458.49 = 57,097.31 : x
  2. Step 2: Convert to fraction form
    120,469.28/180,458.49 = 57,097.31/x
  3. Step 3: Cross multiply
    120,469.28x = 180,458.49 × 57,097.31
  4. Step 4: Simplify right side
    120,469.28x = 10,303,694,345.66
  5. Step 5: Solve for x
    x = 10,303,694,345.66/120,469.28
  6. Step 6: Final answer
    x = 85,529.64

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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.