Home / 159,778.73-220,495.83-88,161.41

Finding the Fourth Proportional to 159,778.73, 220,495.83 and 88,161.41

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Solution

The fourth proportional to 159,778.73, 220,495.83 and 88,161.41 is: 121,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,778.73 : 220,495.83 = 88,161.41 : x
  2. Step 2: Convert to fraction form
    159,778.73/220,495.83 = 88,161.41/x
  3. Step 3: Cross multiply
    159,778.73x = 220,495.83 × 88,161.41
  4. Step 4: Simplify right side
    159,778.73x = 19,439,223,271.92
  5. Step 5: Solve for x
    x = 19,439,223,271.92/159,778.73
  6. Step 6: Final answer
    x = 121,663.40

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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.