Home / 171,932.10-257,934.60-51,979.20

Finding the Fourth Proportional to 171,932.10, 257,934.60 and 51,979.20

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Solution

The fourth proportional to 171,932.10, 257,934.60 and 51,979.20 is: 77,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,932.10 : 257,934.60 = 51,979.20 : x
  2. Step 2: Convert to fraction form
    171,932.10/257,934.60 = 51,979.20/x
  3. Step 3: Cross multiply
    171,932.10x = 257,934.60 × 51,979.20
  4. Step 4: Simplify right side
    171,932.10x = 13,407,234,160.32
  5. Step 5: Solve for x
    x = 13,407,234,160.32/171,932.10
  6. Step 6: Final answer
    x = 77,979.82

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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.