Home / 220,215.38-303,887.05-124,722.76

Finding the Fourth Proportional to 220,215.38, 303,887.05 and 124,722.76

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Solution

The fourth proportional to 220,215.38, 303,887.05 and 124,722.76 is: 172,111.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,215.38 : 303,887.05 = 124,722.76 : x
  2. Step 2: Convert to fraction form
    220,215.38/303,887.05 = 124,722.76/x
  3. Step 3: Cross multiply
    220,215.38x = 303,887.05 × 124,722.76
  4. Step 4: Simplify right side
    220,215.38x = 37,901,631,000.44
  5. Step 5: Solve for x
    x = 37,901,631,000.44/220,215.38
  6. Step 6: Final answer
    x = 172,111.64

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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.