Home / 202,831.76-279,822.12-135,785.36

Finding the Fourth Proportional to 202,831.76, 279,822.12 and 135,785.36

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Solution

The fourth proportional to 202,831.76, 279,822.12 and 135,785.36 is: 187,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,831.76 : 279,822.12 = 135,785.36 : x
  2. Step 2: Convert to fraction form
    202,831.76/279,822.12 = 135,785.36/x
  3. Step 3: Cross multiply
    202,831.76x = 279,822.12 × 135,785.36
  4. Step 4: Simplify right side
    202,831.76x = 37,995,747,300.16
  5. Step 5: Solve for x
    x = 37,995,747,300.16/202,831.76
  6. Step 6: Final answer
    x = 187,326.42

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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.