Home / 119,049.12-164,295.17-78,692.90

Finding the Fourth Proportional to 119,049.12, 164,295.17 and 78,692.90

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Solution

The fourth proportional to 119,049.12, 164,295.17 and 78,692.90 is: 108,601.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,049.12 : 164,295.17 = 78,692.90 : x
  2. Step 2: Convert to fraction form
    119,049.12/164,295.17 = 78,692.90/x
  3. Step 3: Cross multiply
    119,049.12x = 164,295.17 × 78,692.90
  4. Step 4: Simplify right side
    119,049.12x = 12,928,862,168.35
  5. Step 5: Solve for x
    x = 12,928,862,168.35/119,049.12
  6. Step 6: Final answer
    x = 108,601.07

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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.