Home / 108,161.20-162,023.10-61,359.40

Finding the Fourth Proportional to 108,161.20, 162,023.10 and 61,359.40

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Solution

The fourth proportional to 108,161.20, 162,023.10 and 61,359.40 is: 91,915.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,161.20 : 162,023.10 = 61,359.40 : x
  2. Step 2: Convert to fraction form
    108,161.20/162,023.10 = 61,359.40/x
  3. Step 3: Cross multiply
    108,161.20x = 162,023.10 × 61,359.40
  4. Step 4: Simplify right side
    108,161.20x = 9,941,640,202.14
  5. Step 5: Solve for x
    x = 9,941,640,202.14/108,161.20
  6. Step 6: Final answer
    x = 91,915.03

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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.