Home / 115,067.36-172,620.72-52,743.20

Finding the Fourth Proportional to 115,067.36, 172,620.72 and 52,743.20

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Solution

The fourth proportional to 115,067.36, 172,620.72 and 52,743.20 is: 79,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,067.36 : 172,620.72 = 52,743.20 : x
  2. Step 2: Convert to fraction form
    115,067.36/172,620.72 = 52,743.20/x
  3. Step 3: Cross multiply
    115,067.36x = 172,620.72 × 52,743.20
  4. Step 4: Simplify right side
    115,067.36x = 9,104,569,159.10
  5. Step 5: Solve for x
    x = 9,104,569,159.10/115,067.36
  6. Step 6: Final answer
    x = 79,123.82

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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.