Home / 132,635.89-183,009.15-78,910.41

Finding the Fourth Proportional to 132,635.89, 183,009.15 and 78,910.41

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Solution

The fourth proportional to 132,635.89, 183,009.15 and 78,910.41 is: 108,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,635.89 : 183,009.15 = 78,910.41 : x
  2. Step 2: Convert to fraction form
    132,635.89/183,009.15 = 78,910.41/x
  3. Step 3: Cross multiply
    132,635.89x = 183,009.15 × 78,910.41
  4. Step 4: Simplify right side
    132,635.89x = 14,441,326,145.21
  5. Step 5: Solve for x
    x = 14,441,326,145.21/132,635.89
  6. Step 6: Final answer
    x = 108,879.48

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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.