Home / 108,541.20-162,811.80-103,933.20

Finding the Fourth Proportional to 108,541.20, 162,811.80 and 103,933.20

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Solution

The fourth proportional to 108,541.20, 162,811.80 and 103,933.20 is: 155,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,541.20 : 162,811.80 = 103,933.20 : x
  2. Step 2: Convert to fraction form
    108,541.20/162,811.80 = 103,933.20/x
  3. Step 3: Cross multiply
    108,541.20x = 162,811.80 × 103,933.20
  4. Step 4: Simplify right side
    108,541.20x = 16,921,551,371.76
  5. Step 5: Solve for x
    x = 16,921,551,371.76/108,541.20
  6. Step 6: Final answer
    x = 155,899.80

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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.