Home / 115,216.78-172,824.90-45,046.75

Finding the Fourth Proportional to 115,216.78, 172,824.90 and 45,046.75

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Solution

The fourth proportional to 115,216.78, 172,824.90 and 45,046.75 is: 67,570.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,216.78 : 172,824.90 = 45,046.75 : x
  2. Step 2: Convert to fraction form
    115,216.78/172,824.90 = 45,046.75/x
  3. Step 3: Cross multiply
    115,216.78x = 172,824.90 × 45,046.75
  4. Step 4: Simplify right side
    115,216.78x = 7,785,200,064.08
  5. Step 5: Solve for x
    x = 7,785,200,064.08/115,216.78
  6. Step 6: Final answer
    x = 67,570.02

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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.