Home / 108,563.85-162,807.38-51,631.05

Finding the Fourth Proportional to 108,563.85, 162,807.38 and 51,631.05

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Solution

The fourth proportional to 108,563.85, 162,807.38 and 51,631.05 is: 77,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,563.85 : 162,807.38 = 51,631.05 : x
  2. Step 2: Convert to fraction form
    108,563.85/162,807.38 = 51,631.05/x
  3. Step 3: Cross multiply
    108,563.85x = 162,807.38 × 51,631.05
  4. Step 4: Simplify right side
    108,563.85x = 8,405,915,718.99
  5. Step 5: Solve for x
    x = 8,405,915,718.99/108,563.85
  6. Step 6: Final answer
    x = 77,428.31

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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.