Home / 109,828.80-164,378.70-79,757.55

Finding the Fourth Proportional to 109,828.80, 164,378.70 and 79,757.55

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Solution

The fourth proportional to 109,828.80, 164,378.70 and 79,757.55 is: 119,371.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,828.80 : 164,378.70 = 79,757.55 : x
  2. Step 2: Convert to fraction form
    109,828.80/164,378.70 = 79,757.55/x
  3. Step 3: Cross multiply
    109,828.80x = 164,378.70 × 79,757.55
  4. Step 4: Simplify right side
    109,828.80x = 13,110,442,384.19
  5. Step 5: Solve for x
    x = 13,110,442,384.19/109,828.80
  6. Step 6: Final answer
    x = 119,371.63

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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.