Home / 106,555.27-159,680.62-78,253.33

Finding the Fourth Proportional to 106,555.27, 159,680.62 and 78,253.33

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Solution

The fourth proportional to 106,555.27, 159,680.62 and 78,253.33 is: 117,268.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,555.27 : 159,680.62 = 78,253.33 : x
  2. Step 2: Convert to fraction form
    106,555.27/159,680.62 = 78,253.33/x
  3. Step 3: Cross multiply
    106,555.27x = 159,680.62 × 78,253.33
  4. Step 4: Simplify right side
    106,555.27x = 12,495,540,251.46
  5. Step 5: Solve for x
    x = 12,495,540,251.46/106,555.27
  6. Step 6: Final answer
    x = 117,268.16

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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.