Home / 120,294.10-165,947.39-79,474.24

Finding the Fourth Proportional to 120,294.10, 165,947.39 and 79,474.24

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Solution

The fourth proportional to 120,294.10, 165,947.39 and 79,474.24 is: 109,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,294.10 : 165,947.39 = 79,474.24 : x
  2. Step 2: Convert to fraction form
    120,294.10/165,947.39 = 79,474.24/x
  3. Step 3: Cross multiply
    120,294.10x = 165,947.39 × 79,474.24
  4. Step 4: Simplify right side
    120,294.10x = 13,188,542,700.23
  5. Step 5: Solve for x
    x = 13,188,542,700.23/120,294.10
  6. Step 6: Final answer
    x = 109,635.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.