Home / 115,104.78-172,644.80-30,873.33

Finding the Fourth Proportional to 115,104.78, 172,644.80 and 30,873.33

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Solution

The fourth proportional to 115,104.78, 172,644.80 and 30,873.33 is: 46,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,104.78 : 172,644.80 = 30,873.33 : x
  2. Step 2: Convert to fraction form
    115,104.78/172,644.80 = 30,873.33/x
  3. Step 3: Cross multiply
    115,104.78x = 172,644.80 × 30,873.33
  4. Step 4: Simplify right side
    115,104.78x = 5,330,119,728.82
  5. Step 5: Solve for x
    x = 5,330,119,728.82/115,104.78
  6. Step 6: Final answer
    x = 46,306.68

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1.5x scale

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.