Home / 108,439.20-162,529.20-55,821.60

Finding the Fourth Proportional to 108,439.20, 162,529.20 and 55,821.60

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Solution

The fourth proportional to 108,439.20, 162,529.20 and 55,821.60 is: 83,665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,439.20 : 162,529.20 = 55,821.60 : x
  2. Step 2: Convert to fraction form
    108,439.20/162,529.20 = 55,821.60/x
  3. Step 3: Cross multiply
    108,439.20x = 162,529.20 × 55,821.60
  4. Step 4: Simplify right side
    108,439.20x = 9,072,639,990.72
  5. Step 5: Solve for x
    x = 9,072,639,990.72/108,439.20
  6. Step 6: Final answer
    x = 83,665.69

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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.