Home / 103,786.12-155,672.70-41,411.80

Finding the Fourth Proportional to 103,786.12, 155,672.70 and 41,411.80

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Solution

The fourth proportional to 103,786.12, 155,672.70 and 41,411.80 is: 62,115.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,786.12 : 155,672.70 = 41,411.80 : x
  2. Step 2: Convert to fraction form
    103,786.12/155,672.70 = 41,411.80/x
  3. Step 3: Cross multiply
    103,786.12x = 155,672.70 × 41,411.80
  4. Step 4: Simplify right side
    103,786.12x = 6,446,686,717.86
  5. Step 5: Solve for x
    x = 6,446,686,717.86/103,786.12
  6. Step 6: Final answer
    x = 62,115.11

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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.