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Finding the Fourth Proportional to 108,524.69, 162,813.67 and 87,653.87

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Solution

The fourth proportional to 108,524.69, 162,813.67 and 87,653.87 is: 131,502.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,524.69 : 162,813.67 = 87,653.87 : x
  2. Step 2: Convert to fraction form
    108,524.69/162,813.67 = 87,653.87/x
  3. Step 3: Cross multiply
    108,524.69x = 162,813.67 × 87,653.87
  4. Step 4: Simplify right side
    108,524.69x = 14,271,247,231.20
  5. Step 5: Solve for x
    x = 14,271,247,231.20/108,524.69
  6. Step 6: Final answer
    x = 131,502.31

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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.