Home / 135,493.91-187,007.77-78,170.27

Finding the Fourth Proportional to 135,493.91, 187,007.77 and 78,170.27

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Solution

The fourth proportional to 135,493.91, 187,007.77 and 78,170.27 is: 107,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,493.91 : 187,007.77 = 78,170.27 : x
  2. Step 2: Convert to fraction form
    135,493.91/187,007.77 = 78,170.27/x
  3. Step 3: Cross multiply
    135,493.91x = 187,007.77 × 78,170.27
  4. Step 4: Simplify right side
    135,493.91x = 14,618,447,035.67
  5. Step 5: Solve for x
    x = 14,618,447,035.67/135,493.91
  6. Step 6: Final answer
    x = 107,890.06

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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.