Home / 170,188.20-255,196.80-99,134.28

Finding the Fourth Proportional to 170,188.20, 255,196.80 and 99,134.28

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Solution

The fourth proportional to 170,188.20, 255,196.80 and 99,134.28 is: 148,651.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,188.20 : 255,196.80 = 99,134.28 : x
  2. Step 2: Convert to fraction form
    170,188.20/255,196.80 = 99,134.28/x
  3. Step 3: Cross multiply
    170,188.20x = 255,196.80 × 99,134.28
  4. Step 4: Simplify right side
    170,188.20x = 25,298,751,026.30
  5. Step 5: Solve for x
    x = 25,298,751,026.30/170,188.20
  6. Step 6: Final answer
    x = 148,651.62

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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.