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Finding the Fourth Proportional to 113,480.10, 169,928.55 and 83,736.90

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Solution

The fourth proportional to 113,480.10, 169,928.55 and 83,736.90 is: 125,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,480.10 : 169,928.55 = 83,736.90 : x
  2. Step 2: Convert to fraction form
    113,480.10/169,928.55 = 83,736.90/x
  3. Step 3: Cross multiply
    113,480.10x = 169,928.55 × 83,736.90
  4. Step 4: Simplify right side
    113,480.10x = 14,229,289,998.50
  5. Step 5: Solve for x
    x = 14,229,289,998.50/113,480.10
  6. Step 6: Final answer
    x = 125,390.18

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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.