Home / 123,324.18-170,187.81-66,735.55

Finding the Fourth Proportional to 123,324.18, 170,187.81 and 66,735.55

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Solution

The fourth proportional to 123,324.18, 170,187.81 and 66,735.55 is: 92,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,324.18 : 170,187.81 = 66,735.55 : x
  2. Step 2: Convert to fraction form
    123,324.18/170,187.81 = 66,735.55/x
  3. Step 3: Cross multiply
    123,324.18x = 170,187.81 × 66,735.55
  4. Step 4: Simplify right side
    123,324.18x = 11,357,577,103.65
  5. Step 5: Solve for x
    x = 11,357,577,103.65/123,324.18
  6. Step 6: Final answer
    x = 92,095.30

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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.