Home / 113,355.20-169,629.60-98,724.80

Finding the Fourth Proportional to 113,355.20, 169,629.60 and 98,724.80

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Solution

The fourth proportional to 113,355.20, 169,629.60 and 98,724.80 is: 147,736.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,355.20 : 169,629.60 = 98,724.80 : x
  2. Step 2: Convert to fraction form
    113,355.20/169,629.60 = 98,724.80/x
  3. Step 3: Cross multiply
    113,355.20x = 169,629.60 × 98,724.80
  4. Step 4: Simplify right side
    113,355.20x = 16,746,648,334.08
  5. Step 5: Solve for x
    x = 16,746,648,334.08/113,355.20
  6. Step 6: Final answer
    x = 147,736.04

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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.