Home / 109,823.80-164,371.20-79,752.55

Finding the Fourth Proportional to 109,823.80, 164,371.20 and 79,752.55

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Solution

The fourth proportional to 109,823.80, 164,371.20 and 79,752.55 is: 119,364.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,823.80 : 164,371.20 = 79,752.55 : x
  2. Step 2: Convert to fraction form
    109,823.80/164,371.20 = 79,752.55/x
  3. Step 3: Cross multiply
    109,823.80x = 164,371.20 × 79,752.55
  4. Step 4: Simplify right side
    109,823.80x = 13,109,022,346.56
  5. Step 5: Solve for x
    x = 13,109,022,346.56/109,823.80
  6. Step 6: Final answer
    x = 119,364.13

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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.