Home / 123,201.65-170,018.23-69,486.55

Finding the Fourth Proportional to 123,201.65, 170,018.23 and 69,486.55

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Solution

The fourth proportional to 123,201.65, 170,018.23 and 69,486.55 is: 95,891.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,201.65 : 170,018.23 = 69,486.55 : x
  2. Step 2: Convert to fraction form
    123,201.65/170,018.23 = 69,486.55/x
  3. Step 3: Cross multiply
    123,201.65x = 170,018.23 × 69,486.55
  4. Step 4: Simplify right side
    123,201.65x = 11,813,980,239.81
  5. Step 5: Solve for x
    x = 11,813,980,239.81/123,201.65
  6. Step 6: Final answer
    x = 95,891.41

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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.