Home / 220,215.79-303,887.62-124,723.17

Finding the Fourth Proportional to 220,215.79, 303,887.62 and 124,723.17

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Solution

The fourth proportional to 220,215.79, 303,887.62 and 124,723.17 is: 172,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,215.79 : 303,887.62 = 124,723.17 : x
  2. Step 2: Convert to fraction form
    220,215.79/303,887.62 = 124,723.17/x
  3. Step 3: Cross multiply
    220,215.79x = 303,887.62 × 124,723.17
  4. Step 4: Simplify right side
    220,215.79x = 37,901,825,147.10
  5. Step 5: Solve for x
    x = 37,901,825,147.10/220,215.79
  6. Step 6: Final answer
    x = 172,112.21

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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.