Home / 159,291.20-219,831.84-87,677.44

Finding the Fourth Proportional to 159,291.20, 219,831.84 and 87,677.44

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Solution

The fourth proportional to 159,291.20, 219,831.84 and 87,677.44 is: 121,000.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,291.20 : 219,831.84 = 87,677.44 : x
  2. Step 2: Convert to fraction form
    159,291.20/219,831.84 = 87,677.44/x
  3. Step 3: Cross multiply
    159,291.20x = 219,831.84 × 87,677.44
  4. Step 4: Simplify right side
    159,291.20x = 19,274,292,961.69
  5. Step 5: Solve for x
    x = 19,274,292,961.69/159,291.20
  6. Step 6: Final answer
    x = 121,000.36

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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.