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Finding the Fourth Proportional to 69,514.88, 103,378.05 and 67,300.52

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Solution

The fourth proportional to 69,514.88, 103,378.05 and 67,300.52 is: 100,085.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,514.88 : 103,378.05 = 67,300.52 : x
  2. Step 2: Convert to fraction form
    69,514.88/103,378.05 = 67,300.52/x
  3. Step 3: Cross multiply
    69,514.88x = 103,378.05 × 67,300.52
  4. Step 4: Simplify right side
    69,514.88x = 6,957,396,004.70
  5. Step 5: Solve for x
    x = 6,957,396,004.70/69,514.88
  6. Step 6: Final answer
    x = 100,085.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.