Home / 141,913.08-195,835.86-78,250.86

Finding the Fourth Proportional to 141,913.08, 195,835.86 and 78,250.86

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Solution

The fourth proportional to 141,913.08, 195,835.86 and 78,250.86 is: 107,983.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,913.08 : 195,835.86 = 78,250.86 : x
  2. Step 2: Convert to fraction form
    141,913.08/195,835.86 = 78,250.86/x
  3. Step 3: Cross multiply
    141,913.08x = 195,835.86 × 78,250.86
  4. Step 4: Simplify right side
    141,913.08x = 15,324,324,463.84
  5. Step 5: Solve for x
    x = 15,324,324,463.84/141,913.08
  6. Step 6: Final answer
    x = 107,983.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.