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Finding the Fourth Proportional to 100,085, 150,171.08 and 62,730.68

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Solution

The fourth proportional to 100,085, 150,171.08 and 62,730.68 is: 94,123.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,085 : 150,171.08 = 62,730.68 : x
  2. Step 2: Convert to fraction form
    100,085/150,171.08 = 62,730.68/x
  3. Step 3: Cross multiply
    100,085x = 150,171.08 × 62,730.68
  4. Step 4: Simplify right side
    100,085x = 9,420,333,964.73
  5. Step 5: Solve for x
    x = 9,420,333,964.73/100,085
  6. Step 6: Final answer
    x = 94,123.33

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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.