Home / 202,789.90-279,844.77-112,143.34

Finding the Fourth Proportional to 202,789.90, 279,844.77 and 112,143.34

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Solution

The fourth proportional to 202,789.90, 279,844.77 and 112,143.34 is: 154,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,789.90 : 279,844.77 = 112,143.34 : x
  2. Step 2: Convert to fraction form
    202,789.90/279,844.77 = 112,143.34/x
  3. Step 3: Cross multiply
    202,789.90x = 279,844.77 × 112,143.34
  4. Step 4: Simplify right side
    202,789.90x = 31,382,727,189.33
  5. Step 5: Solve for x
    x = 31,382,727,189.33/202,789.90
  6. Step 6: Final answer
    x = 154,754.88

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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.