Home / 87,866.10-131,410.35-73,869.30

Finding the Fourth Proportional to 87,866.10, 131,410.35 and 73,869.30

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Solution

The fourth proportional to 87,866.10, 131,410.35 and 73,869.30 is: 110,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,866.10 : 131,410.35 = 73,869.30 : x
  2. Step 2: Convert to fraction form
    87,866.10/131,410.35 = 73,869.30/x
  3. Step 3: Cross multiply
    87,866.10x = 131,410.35 × 73,869.30
  4. Step 4: Simplify right side
    87,866.10x = 9,707,190,567.26
  5. Step 5: Solve for x
    x = 9,707,190,567.26/87,866.10
  6. Step 6: Final answer
    x = 110,477.08

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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.