Home / 170,714.20-255,871.91-128,458.46

Finding the Fourth Proportional to 170,714.20, 255,871.91 and 128,458.46

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Solution

The fourth proportional to 170,714.20, 255,871.91 and 128,458.46 is: 192,537.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,714.20 : 255,871.91 = 128,458.46 : x
  2. Step 2: Convert to fraction form
    170,714.20/255,871.91 = 128,458.46/x
  3. Step 3: Cross multiply
    170,714.20x = 255,871.91 × 128,458.46
  4. Step 4: Simplify right side
    170,714.20x = 32,868,910,557.65
  5. Step 5: Solve for x
    x = 32,868,910,557.65/170,714.20
  6. Step 6: Final answer
    x = 192,537.65

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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.