Home / 135,890.86-187,523.07-75,465.37

Finding the Fourth Proportional to 135,890.86, 187,523.07 and 75,465.37

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Solution

The fourth proportional to 135,890.86, 187,523.07 and 75,465.37 is: 104,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,890.86 : 187,523.07 = 75,465.37 : x
  2. Step 2: Convert to fraction form
    135,890.86/187,523.07 = 75,465.37/x
  3. Step 3: Cross multiply
    135,890.86x = 187,523.07 × 75,465.37
  4. Step 4: Simplify right side
    135,890.86x = 14,151,497,861.09
  5. Step 5: Solve for x
    x = 14,151,497,861.09/135,890.86
  6. Step 6: Final answer
    x = 104,138.70

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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.