Home / 120,233.13-165,907.38-66,510.87

Finding the Fourth Proportional to 120,233.13, 165,907.38 and 66,510.87

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Solution

The fourth proportional to 120,233.13, 165,907.38 and 66,510.87 is: 91,777.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,233.13 : 165,907.38 = 66,510.87 : x
  2. Step 2: Convert to fraction form
    120,233.13/165,907.38 = 66,510.87/x
  3. Step 3: Cross multiply
    120,233.13x = 165,907.38 × 66,510.87
  4. Step 4: Simplify right side
    120,233.13x = 11,034,644,183.22
  5. Step 5: Solve for x
    x = 11,034,644,183.22/120,233.13
  6. Step 6: Final answer
    x = 91,777.07

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1.5x scale

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.