Home / 106,595.27-159,993.37-78,429.45

Finding the Fourth Proportional to 106,595.27, 159,993.37 and 78,429.45

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Solution

The fourth proportional to 106,595.27, 159,993.37 and 78,429.45 is: 117,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,595.27 : 159,993.37 = 78,429.45 : x
  2. Step 2: Convert to fraction form
    106,595.27/159,993.37 = 78,429.45/x
  3. Step 3: Cross multiply
    106,595.27x = 159,993.37 × 78,429.45
  4. Step 4: Simplify right side
    106,595.27x = 12,548,192,012.75
  5. Step 5: Solve for x
    x = 12,548,192,012.75/106,595.27
  6. Step 6: Final answer
    x = 117,718.09

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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.