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Finding the Fourth Proportional to 99,730.44, 149,594.48 and 28,654.80

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Solution

The fourth proportional to 99,730.44, 149,594.48 and 28,654.80 is: 42,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,730.44 : 149,594.48 = 28,654.80 : x
  2. Step 2: Convert to fraction form
    99,730.44/149,594.48 = 28,654.80/x
  3. Step 3: Cross multiply
    99,730.44x = 149,594.48 × 28,654.80
  4. Step 4: Simplify right side
    99,730.44x = 4,286,599,905.50
  5. Step 5: Solve for x
    x = 4,286,599,905.50/99,730.44
  6. Step 6: Final answer
    x = 42,981.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.