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Finding the Fourth Proportional to 103,223.92, 154,979.25 and 53,340.88

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Solution

The fourth proportional to 103,223.92, 154,979.25 and 53,340.88 is: 80,085.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,223.92 : 154,979.25 = 53,340.88 : x
  2. Step 2: Convert to fraction form
    103,223.92/154,979.25 = 53,340.88/x
  3. Step 3: Cross multiply
    103,223.92x = 154,979.25 × 53,340.88
  4. Step 4: Simplify right side
    103,223.92x = 8,266,729,576.74
  5. Step 5: Solve for x
    x = 8,266,729,576.74/103,223.92
  6. Step 6: Final answer
    x = 80,085.41

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1.5x scale

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.