Home / 220,013.16-303,615.72-123,217.89

Finding the Fourth Proportional to 220,013.16, 303,615.72 and 123,217.89

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Solution

The fourth proportional to 220,013.16, 303,615.72 and 123,217.89 is: 170,039.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,013.16 : 303,615.72 = 123,217.89 : x
  2. Step 2: Convert to fraction form
    220,013.16/303,615.72 = 123,217.89/x
  3. Step 3: Cross multiply
    220,013.16x = 303,615.72 × 123,217.89
  4. Step 4: Simplify right side
    220,013.16x = 37,410,888,389.23
  5. Step 5: Solve for x
    x = 37,410,888,389.23/220,013.16
  6. Step 6: Final answer
    x = 170,039.32

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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.