Home / 115,185.14-172,766.03-30,934.36

Finding the Fourth Proportional to 115,185.14, 172,766.03 and 30,934.36

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Solution

The fourth proportional to 115,185.14, 172,766.03 and 30,934.36 is: 46,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,185.14 : 172,766.03 = 30,934.36 : x
  2. Step 2: Convert to fraction form
    115,185.14/172,766.03 = 30,934.36/x
  3. Step 3: Cross multiply
    115,185.14x = 172,766.03 × 30,934.36
  4. Step 4: Simplify right side
    115,185.14x = 5,344,405,703.96
  5. Step 5: Solve for x
    x = 5,344,405,703.96/115,185.14
  6. Step 6: Final answer
    x = 46,398.40

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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.