Home / 110,254.20-165,381.30-76,903.80

Finding the Fourth Proportional to 110,254.20, 165,381.30 and 76,903.80

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Solution

The fourth proportional to 110,254.20, 165,381.30 and 76,903.80 is: 115,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,254.20 : 165,381.30 = 76,903.80 : x
  2. Step 2: Convert to fraction form
    110,254.20/165,381.30 = 76,903.80/x
  3. Step 3: Cross multiply
    110,254.20x = 165,381.30 × 76,903.80
  4. Step 4: Simplify right side
    110,254.20x = 12,718,450,418.94
  5. Step 5: Solve for x
    x = 12,718,450,418.94/110,254.20
  6. Step 6: Final answer
    x = 115,355.70

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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.