Home / 115,329.20-172,993.80-92,001.20

Finding the Fourth Proportional to 115,329.20, 172,993.80 and 92,001.20

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Solution

The fourth proportional to 115,329.20, 172,993.80 and 92,001.20 is: 138,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,329.20 : 172,993.80 = 92,001.20 : x
  2. Step 2: Convert to fraction form
    115,329.20/172,993.80 = 92,001.20/x
  3. Step 3: Cross multiply
    115,329.20x = 172,993.80 × 92,001.20
  4. Step 4: Simplify right side
    115,329.20x = 15,915,637,192.56
  5. Step 5: Solve for x
    x = 15,915,637,192.56/115,329.20
  6. Step 6: Final answer
    x = 138,001.80

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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.