Home / 102,831.30-154,189.62-31,733.78

Finding the Fourth Proportional to 102,831.30, 154,189.62 and 31,733.78

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Solution

The fourth proportional to 102,831.30, 154,189.62 and 31,733.78 is: 47,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,831.30 : 154,189.62 = 31,733.78 : x
  2. Step 2: Convert to fraction form
    102,831.30/154,189.62 = 31,733.78/x
  3. Step 3: Cross multiply
    102,831.30x = 154,189.62 × 31,733.78
  4. Step 4: Simplify right side
    102,831.30x = 4,893,018,708.42
  5. Step 5: Solve for x
    x = 4,893,018,708.42/102,831.30
  6. Step 6: Final answer
    x = 47,582.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.