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Finding the Fourth Proportional to 103,498.88, 155,115.86 and 53,569.67

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Solution

The fourth proportional to 103,498.88, 155,115.86 and 53,569.67 is: 80,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,498.88 : 155,115.86 = 53,569.67 : x
  2. Step 2: Convert to fraction form
    103,498.88/155,115.86 = 53,569.67/x
  3. Step 3: Cross multiply
    103,498.88x = 155,115.86 × 53,569.67
  4. Step 4: Simplify right side
    103,498.88x = 8,309,504,388.54
  5. Step 5: Solve for x
    x = 8,309,504,388.54/103,498.88
  6. Step 6: Final answer
    x = 80,285.94

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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.