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Finding the Fourth Proportional to 132,673.95, 183,078.02 and 78,950.30

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Solution

The fourth proportional to 132,673.95, 183,078.02 and 78,950.30 is: 108,944.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,673.95 : 183,078.02 = 78,950.30 : x
  2. Step 2: Convert to fraction form
    132,673.95/183,078.02 = 78,950.30/x
  3. Step 3: Cross multiply
    132,673.95x = 183,078.02 × 78,950.30
  4. Step 4: Simplify right side
    132,673.95x = 14,454,063,884.39
  5. Step 5: Solve for x
    x = 14,454,063,884.39/132,673.95
  6. Step 6: Final answer
    x = 108,944.25

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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.