Home / 113,221.31-169,831.85-28,981.34

Finding the Fourth Proportional to 113,221.31, 169,831.85 and 28,981.34

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Solution

The fourth proportional to 113,221.31, 169,831.85 and 28,981.34 is: 43,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,221.31 : 169,831.85 = 28,981.34 : x
  2. Step 2: Convert to fraction form
    113,221.31/169,831.85 = 28,981.34/x
  3. Step 3: Cross multiply
    113,221.31x = 169,831.85 × 28,981.34
  4. Step 4: Simplify right side
    113,221.31x = 4,921,953,738.52
  5. Step 5: Solve for x
    x = 4,921,953,738.52/113,221.31
  6. Step 6: Final answer
    x = 43,471.97

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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.