Home / 170,429.30-255,451.95-81,725.30

Finding the Fourth Proportional to 170,429.30, 255,451.95 and 81,725.30

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Solution

The fourth proportional to 170,429.30, 255,451.95 and 81,725.30 is: 122,495.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,429.30 : 255,451.95 = 81,725.30 : x
  2. Step 2: Convert to fraction form
    170,429.30/255,451.95 = 81,725.30/x
  3. Step 3: Cross multiply
    170,429.30x = 255,451.95 × 81,725.30
  4. Step 4: Simplify right side
    170,429.30x = 20,876,887,249.34
  5. Step 5: Solve for x
    x = 20,876,887,249.34/170,429.30
  6. Step 6: Final answer
    x = 122,495.88

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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.