Home / 108,790.75-163,436.28-77,277.43

Finding the Fourth Proportional to 108,790.75, 163,436.28 and 77,277.43

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Solution

The fourth proportional to 108,790.75, 163,436.28 and 77,277.43 is: 116,093.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,790.75 : 163,436.28 = 77,277.43 : x
  2. Step 2: Convert to fraction form
    108,790.75/163,436.28 = 77,277.43/x
  3. Step 3: Cross multiply
    108,790.75x = 163,436.28 × 77,277.43
  4. Step 4: Simplify right side
    108,790.75x = 12,629,935,687.16
  5. Step 5: Solve for x
    x = 12,629,935,687.16/108,790.75
  6. Step 6: Final answer
    x = 116,093.84

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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.