Home / 135,658.20-187,204.77-75,228.69

Finding the Fourth Proportional to 135,658.20, 187,204.77 and 75,228.69

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Solution

The fourth proportional to 135,658.20, 187,204.77 and 75,228.69 is: 103,813.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,658.20 : 187,204.77 = 75,228.69 : x
  2. Step 2: Convert to fraction form
    135,658.20/187,204.77 = 75,228.69/x
  3. Step 3: Cross multiply
    135,658.20x = 187,204.77 × 75,228.69
  4. Step 4: Simplify right side
    135,658.20x = 14,083,169,608.85
  5. Step 5: Solve for x
    x = 14,083,169,608.85/135,658.20
  6. Step 6: Final answer
    x = 103,813.63

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1.5x scale

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.