Home / 172,131.28-237,563.40-96,679.78

Finding the Fourth Proportional to 172,131.28, 237,563.40 and 96,679.78

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Solution

The fourth proportional to 172,131.28, 237,563.40 and 96,679.78 is: 133,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,131.28 : 237,563.40 = 96,679.78 : x
  2. Step 2: Convert to fraction form
    172,131.28/237,563.40 = 96,679.78/x
  3. Step 3: Cross multiply
    172,131.28x = 237,563.40 × 96,679.78
  4. Step 4: Simplify right side
    172,131.28x = 22,967,577,248.05
  5. Step 5: Solve for x
    x = 22,967,577,248.05/172,131.28
  6. Step 6: Final answer
    x = 133,430.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.