Home / 170,305.12-255,593.76-76,818.16

Finding the Fourth Proportional to 170,305.12, 255,593.76 and 76,818.16

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Solution

The fourth proportional to 170,305.12, 255,593.76 and 76,818.16 is: 115,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,305.12 : 255,593.76 = 76,818.16 : x
  2. Step 2: Convert to fraction form
    170,305.12/255,593.76 = 76,818.16/x
  3. Step 3: Cross multiply
    170,305.12x = 255,593.76 × 76,818.16
  4. Step 4: Simplify right side
    170,305.12x = 19,634,242,350.68
  5. Step 5: Solve for x
    x = 19,634,242,350.68/170,305.12
  6. Step 6: Final answer
    x = 115,288.62

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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.