Home / 123,324-170,188.34-66,736.59

Finding the Fourth Proportional to 123,324, 170,188.34 and 66,736.59

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Solution

The fourth proportional to 123,324, 170,188.34 and 66,736.59 is: 92,097.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,324 : 170,188.34 = 66,736.59 : x
  2. Step 2: Convert to fraction form
    123,324/170,188.34 = 66,736.59/x
  3. Step 3: Cross multiply
    123,324x = 170,188.34 × 66,736.59
  4. Step 4: Simplify right side
    123,324x = 11,357,789,135.68
  5. Step 5: Solve for x
    x = 11,357,789,135.68/123,324
  6. Step 6: Final answer
    x = 92,097.15

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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.