Home / 141,900.26-195,818.61-78,236.98

Finding the Fourth Proportional to 141,900.26, 195,818.61 and 78,236.98

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Solution

The fourth proportional to 141,900.26, 195,818.61 and 78,236.98 is: 107,964.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,900.26 : 195,818.61 = 78,236.98 : x
  2. Step 2: Convert to fraction form
    141,900.26/195,818.61 = 78,236.98/x
  3. Step 3: Cross multiply
    141,900.26x = 195,818.61 × 78,236.98
  4. Step 4: Simplify right side
    141,900.26x = 15,320,256,674.20
  5. Step 5: Solve for x
    x = 15,320,256,674.20/141,900.26
  6. Step 6: Final answer
    x = 107,964.97

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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.