Home / 123,405.59-170,300.37-66,816.97

Finding the Fourth Proportional to 123,405.59, 170,300.37 and 66,816.97

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Solution

The fourth proportional to 123,405.59, 170,300.37 and 66,816.97 is: 92,207.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,405.59 : 170,300.37 = 66,816.97 : x
  2. Step 2: Convert to fraction form
    123,405.59/170,300.37 = 66,816.97/x
  3. Step 3: Cross multiply
    123,405.59x = 170,300.37 × 66,816.97
  4. Step 4: Simplify right side
    123,405.59x = 11,378,954,538.09
  5. Step 5: Solve for x
    x = 11,378,954,538.09/123,405.59
  6. Step 6: Final answer
    x = 92,207.77

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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.