Home / 119,855.24-165,395.37-66,139.54

Finding the Fourth Proportional to 119,855.24, 165,395.37 and 66,139.54

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Solution

The fourth proportional to 119,855.24, 165,395.37 and 66,139.54 is: 91,269.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,855.24 : 165,395.37 = 66,139.54 : x
  2. Step 2: Convert to fraction form
    119,855.24/165,395.37 = 66,139.54/x
  3. Step 3: Cross multiply
    119,855.24x = 165,395.37 × 66,139.54
  4. Step 4: Simplify right side
    119,855.24x = 10,939,173,152.43
  5. Step 5: Solve for x
    x = 10,939,173,152.43/119,855.24
  6. Step 6: Final answer
    x = 91,269.87

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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.