Home / 135,890.11-187,522.08-75,464.61

Finding the Fourth Proportional to 135,890.11, 187,522.08 and 75,464.61

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Solution

The fourth proportional to 135,890.11, 187,522.08 and 75,464.61 is: 104,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,890.11 : 187,522.08 = 75,464.61 : x
  2. Step 2: Convert to fraction form
    135,890.11/187,522.08 = 75,464.61/x
  3. Step 3: Cross multiply
    135,890.11x = 187,522.08 × 75,464.61
  4. Step 4: Simplify right side
    135,890.11x = 14,151,280,633.59
  5. Step 5: Solve for x
    x = 14,151,280,633.59/135,890.11
  6. Step 6: Final answer
    x = 104,137.68

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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.