Home / 108,428.20-162,620.70-52,268.20

Finding the Fourth Proportional to 108,428.20, 162,620.70 and 52,268.20

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Solution

The fourth proportional to 108,428.20, 162,620.70 and 52,268.20 is: 78,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,428.20 : 162,620.70 = 52,268.20 : x
  2. Step 2: Convert to fraction form
    108,428.20/162,620.70 = 52,268.20/x
  3. Step 3: Cross multiply
    108,428.20x = 162,620.70 × 52,268.20
  4. Step 4: Simplify right side
    108,428.20x = 8,499,891,271.74
  5. Step 5: Solve for x
    x = 8,499,891,271.74/108,428.20
  6. Step 6: Final answer
    x = 78,391.89

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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.