Home / 141,705.65-195,562.63-78,043.43

Finding the Fourth Proportional to 141,705.65, 195,562.63 and 78,043.43

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Solution

The fourth proportional to 141,705.65, 195,562.63 and 78,043.43 is: 107,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,705.65 : 195,562.63 = 78,043.43 : x
  2. Step 2: Convert to fraction form
    141,705.65/195,562.63 = 78,043.43/x
  3. Step 3: Cross multiply
    141,705.65x = 195,562.63 × 78,043.43
  4. Step 4: Simplify right side
    141,705.65x = 15,262,377,447.21
  5. Step 5: Solve for x
    x = 15,262,377,447.21/141,705.65
  6. Step 6: Final answer
    x = 107,704.80

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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.