Home / 132,631.89-183,003.63-78,906.41

Finding the Fourth Proportional to 132,631.89, 183,003.63 and 78,906.41

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Solution

The fourth proportional to 132,631.89, 183,003.63 and 78,906.41 is: 108,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,631.89 : 183,003.63 = 78,906.41 : x
  2. Step 2: Convert to fraction form
    132,631.89/183,003.63 = 78,906.41/x
  3. Step 3: Cross multiply
    132,631.89x = 183,003.63 × 78,906.41
  4. Step 4: Simplify right side
    132,631.89x = 14,440,158,545.25
  5. Step 5: Solve for x
    x = 14,440,158,545.25/132,631.89
  6. Step 6: Final answer
    x = 108,873.96

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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.