Home / 185,831.16-278,780.34-67,668.36

Finding the Fourth Proportional to 185,831.16, 278,780.34 and 67,668.36

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Solution

The fourth proportional to 185,831.16, 278,780.34 and 67,668.36 is: 101,514.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,831.16 : 278,780.34 = 67,668.36 : x
  2. Step 2: Convert to fraction form
    185,831.16/278,780.34 = 67,668.36/x
  3. Step 3: Cross multiply
    185,831.16x = 278,780.34 × 67,668.36
  4. Step 4: Simplify right side
    185,831.16x = 18,864,608,408.04
  5. Step 5: Solve for x
    x = 18,864,608,408.04/185,831.16
  6. Step 6: Final answer
    x = 101,514.78

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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.