Home / 109,414.80-163,757.70-79,343.55

Finding the Fourth Proportional to 109,414.80, 163,757.70 and 79,343.55

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Solution

The fourth proportional to 109,414.80, 163,757.70 and 79,343.55 is: 118,751.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,414.80 : 163,757.70 = 79,343.55 : x
  2. Step 2: Convert to fraction form
    109,414.80/163,757.70 = 79,343.55/x
  3. Step 3: Cross multiply
    109,414.80x = 163,757.70 × 79,343.55
  4. Step 4: Simplify right side
    109,414.80x = 12,993,117,257.84
  5. Step 5: Solve for x
    x = 12,993,117,257.84/109,414.80
  6. Step 6: Final answer
    x = 118,751.00

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1.5x scale

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.