Home / 108,520.20-162,561.60-61,718.40

Finding the Fourth Proportional to 108,520.20, 162,561.60 and 61,718.40

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Solution

The fourth proportional to 108,520.20, 162,561.60 and 61,718.40 is: 92,453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,520.20 : 162,561.60 = 61,718.40 : x
  2. Step 2: Convert to fraction form
    108,520.20/162,561.60 = 61,718.40/x
  3. Step 3: Cross multiply
    108,520.20x = 162,561.60 × 61,718.40
  4. Step 4: Simplify right side
    108,520.20x = 10,033,041,853.44
  5. Step 5: Solve for x
    x = 10,033,041,853.44/108,520.20
  6. Step 6: Final answer
    x = 92,453.22

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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.