Home / 170,262.86-255,353.15-75,440.61

Finding the Fourth Proportional to 170,262.86, 255,353.15 and 75,440.61

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Solution

The fourth proportional to 170,262.86, 255,353.15 and 75,440.61 is: 113,142.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,262.86 : 255,353.15 = 75,440.61 : x
  2. Step 2: Convert to fraction form
    170,262.86/255,353.15 = 75,440.61/x
  3. Step 3: Cross multiply
    170,262.86x = 255,353.15 × 75,440.61
  4. Step 4: Simplify right side
    170,262.86x = 19,263,997,590.02
  5. Step 5: Solve for x
    x = 19,263,997,590.02/170,262.86
  6. Step 6: Final answer
    x = 113,142.69

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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.