Home / 119,855.34-165,400.22-66,140.37

Finding the Fourth Proportional to 119,855.34, 165,400.22 and 66,140.37

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Solution

The fourth proportional to 119,855.34, 165,400.22 and 66,140.37 is: 91,273.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,855.34 : 165,400.22 = 66,140.37 : x
  2. Step 2: Convert to fraction form
    119,855.34/165,400.22 = 66,140.37/x
  3. Step 3: Cross multiply
    119,855.34x = 165,400.22 × 66,140.37
  4. Step 4: Simplify right side
    119,855.34x = 10,939,631,418.18
  5. Step 5: Solve for x
    x = 10,939,631,418.18/119,855.34
  6. Step 6: Final answer
    x = 91,273.63

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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.