Home / 106,890.20-147,595.66-68,668.72

Finding the Fourth Proportional to 106,890.20, 147,595.66 and 68,668.72

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Solution

The fourth proportional to 106,890.20, 147,595.66 and 68,668.72 is: 94,818.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,890.20 : 147,595.66 = 68,668.72 : x
  2. Step 2: Convert to fraction form
    106,890.20/147,595.66 = 68,668.72/x
  3. Step 3: Cross multiply
    106,890.20x = 147,595.66 × 68,668.72
  4. Step 4: Simplify right side
    106,890.20x = 10,135,205,049.76
  5. Step 5: Solve for x
    x = 10,135,205,049.76/106,890.20
  6. Step 6: Final answer
    x = 94,818.84

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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.