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Finding the Fourth Proportional to 113,189.09, 169,783.01 and 28,949.11

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Solution

The fourth proportional to 113,189.09, 169,783.01 and 28,949.11 is: 43,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,189.09 : 169,783.01 = 28,949.11 : x
  2. Step 2: Convert to fraction form
    113,189.09/169,783.01 = 28,949.11/x
  3. Step 3: Cross multiply
    113,189.09x = 169,783.01 × 28,949.11
  4. Step 4: Simplify right side
    113,189.09x = 4,915,067,032.62
  5. Step 5: Solve for x
    x = 4,915,067,032.62/113,189.09
  6. Step 6: Final answer
    x = 43,423.51

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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.