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Finding the Fourth Proportional to 115,101.56, 172,666.92 and 31,995.56

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Solution

The fourth proportional to 115,101.56, 172,666.92 and 31,995.56 is: 47,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,101.56 : 172,666.92 = 31,995.56 : x
  2. Step 2: Convert to fraction form
    115,101.56/172,666.92 = 31,995.56/x
  3. Step 3: Cross multiply
    115,101.56x = 172,666.92 × 31,995.56
  4. Step 4: Simplify right side
    115,101.56x = 5,524,574,798.88
  5. Step 5: Solve for x
    x = 5,524,574,798.88/115,101.56
  6. Step 6: Final answer
    x = 47,997.39

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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.