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Finding the Fourth Proportional to 115,098.68, 172,620.68 and 43,995.20

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Solution

The fourth proportional to 115,098.68, 172,620.68 and 43,995.20 is: 65,982.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,098.68 : 172,620.68 = 43,995.20 : x
  2. Step 2: Convert to fraction form
    115,098.68/172,620.68 = 43,995.20/x
  3. Step 3: Cross multiply
    115,098.68x = 172,620.68 × 43,995.20
  4. Step 4: Simplify right side
    115,098.68x = 7,594,480,257.66
  5. Step 5: Solve for x
    x = 7,594,480,257.66/115,098.68
  6. Step 6: Final answer
    x = 65,982.34

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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.