Home / 115,502.48-172,942.24-75,422.19

Finding the Fourth Proportional to 115,502.48, 172,942.24 and 75,422.19

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Solution

The fourth proportional to 115,502.48, 172,942.24 and 75,422.19 is: 112,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,502.48 : 172,942.24 = 75,422.19 : x
  2. Step 2: Convert to fraction form
    115,502.48/172,942.24 = 75,422.19/x
  3. Step 3: Cross multiply
    115,502.48x = 172,942.24 × 75,422.19
  4. Step 4: Simplify right side
    115,502.48x = 13,043,682,484.31
  5. Step 5: Solve for x
    x = 13,043,682,484.31/115,502.48
  6. Step 6: Final answer
    x = 112,929.89

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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.