Home / 135,899.20-187,537.32-75,467.92

Finding the Fourth Proportional to 135,899.20, 187,537.32 and 75,467.92

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Solution

The fourth proportional to 135,899.20, 187,537.32 and 75,467.92 is: 104,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,899.20 : 187,537.32 = 75,467.92 : x
  2. Step 2: Convert to fraction form
    135,899.20/187,537.32 = 75,467.92/x
  3. Step 3: Cross multiply
    135,899.20x = 187,537.32 × 75,467.92
  4. Step 4: Simplify right side
    135,899.20x = 14,153,051,462.77
  5. Step 5: Solve for x
    x = 14,153,051,462.77/135,899.20
  6. Step 6: Final answer
    x = 104,143.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.