Home / 119,803.05-165,381.35-77,382.27

Finding the Fourth Proportional to 119,803.05, 165,381.35 and 77,382.27

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Solution

The fourth proportional to 119,803.05, 165,381.35 and 77,382.27 is: 106,821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,803.05 : 165,381.35 = 77,382.27 : x
  2. Step 2: Convert to fraction form
    119,803.05/165,381.35 = 77,382.27/x
  3. Step 3: Cross multiply
    119,803.05x = 165,381.35 × 77,382.27
  4. Step 4: Simplify right side
    119,803.05x = 12,797,583,891.75
  5. Step 5: Solve for x
    x = 12,797,583,891.75/119,803.05
  6. Step 6: Final answer
    x = 106,821.85

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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.