Home / 109,190.86-163,751.46-42,614.80

Finding the Fourth Proportional to 109,190.86, 163,751.46 and 42,614.80

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Solution

The fourth proportional to 109,190.86, 163,751.46 and 42,614.80 is: 63,908.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,190.86 : 163,751.46 = 42,614.80 : x
  2. Step 2: Convert to fraction form
    109,190.86/163,751.46 = 42,614.80/x
  3. Step 3: Cross multiply
    109,190.86x = 163,751.46 × 42,614.80
  4. Step 4: Simplify right side
    109,190.86x = 6,978,235,717.61
  5. Step 5: Solve for x
    x = 6,978,235,717.61/109,190.86
  6. Step 6: Final answer
    x = 63,908.61

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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.