Home / 135,755.45-187,339.66-75,324.79

Finding the Fourth Proportional to 135,755.45, 187,339.66 and 75,324.79

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Solution

The fourth proportional to 135,755.45, 187,339.66 and 75,324.79 is: 103,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,755.45 : 187,339.66 = 75,324.79 : x
  2. Step 2: Convert to fraction form
    135,755.45/187,339.66 = 75,324.79/x
  3. Step 3: Cross multiply
    135,755.45x = 187,339.66 × 75,324.79
  4. Step 4: Simplify right side
    135,755.45x = 14,111,320,594.03
  5. Step 5: Solve for x
    x = 14,111,320,594.03/135,755.45
  6. Step 6: Final answer
    x = 103,946.62

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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.