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Finding the Fourth Proportional to 103,955.52, 155,910.40 and 29,055.56

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Solution

The fourth proportional to 103,955.52, 155,910.40 and 29,055.56 is: 43,576.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,955.52 : 155,910.40 = 29,055.56 : x
  2. Step 2: Convert to fraction form
    103,955.52/155,910.40 = 29,055.56/x
  3. Step 3: Cross multiply
    103,955.52x = 155,910.40 × 29,055.56
  4. Step 4: Simplify right side
    103,955.52x = 4,530,063,981.82
  5. Step 5: Solve for x
    x = 4,530,063,981.82/103,955.52
  6. Step 6: Final answer
    x = 43,576.95

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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.