Home / 115,735.46-172,338.42-111,479.04

Finding the Fourth Proportional to 115,735.46, 172,338.42 and 111,479.04

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Solution

The fourth proportional to 115,735.46, 172,338.42 and 111,479.04 is: 166,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,735.46 : 172,338.42 = 111,479.04 : x
  2. Step 2: Convert to fraction form
    115,735.46/172,338.42 = 111,479.04/x
  3. Step 3: Cross multiply
    115,735.46x = 172,338.42 × 111,479.04
  4. Step 4: Simplify right side
    115,735.46x = 19,212,121,616.72
  5. Step 5: Solve for x
    x = 19,212,121,616.72/115,735.46
  6. Step 6: Final answer
    x = 166,000.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.