Home / 123,217.26-170,039.83-66,628.63

Finding the Fourth Proportional to 123,217.26, 170,039.83 and 66,628.63

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Solution

The fourth proportional to 123,217.26, 170,039.83 and 66,628.63 is: 91,947.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,217.26 : 170,039.83 = 66,628.63 : x
  2. Step 2: Convert to fraction form
    123,217.26/170,039.83 = 66,628.63/x
  3. Step 3: Cross multiply
    123,217.26x = 170,039.83 × 66,628.63
  4. Step 4: Simplify right side
    123,217.26x = 11,329,520,918.33
  5. Step 5: Solve for x
    x = 11,329,520,918.33/123,217.26
  6. Step 6: Final answer
    x = 91,947.52

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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.