Home / 108,455.20-162,337.20-77,351.20

Finding the Fourth Proportional to 108,455.20, 162,337.20 and 77,351.20

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Solution

The fourth proportional to 108,455.20, 162,337.20 and 77,351.20 is: 115,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,455.20 : 162,337.20 = 77,351.20 : x
  2. Step 2: Convert to fraction form
    108,455.20/162,337.20 = 77,351.20/x
  3. Step 3: Cross multiply
    108,455.20x = 162,337.20 × 77,351.20
  4. Step 4: Simplify right side
    108,455.20x = 12,556,977,224.64
  5. Step 5: Solve for x
    x = 12,556,977,224.64/108,455.20
  6. Step 6: Final answer
    x = 115,780.32

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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.