Home / 135,752.45-187,335.51-75,321.80

Finding the Fourth Proportional to 135,752.45, 187,335.51 and 75,321.80

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Solution

The fourth proportional to 135,752.45, 187,335.51 and 75,321.80 is: 103,942.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,752.45 : 187,335.51 = 75,321.80 : x
  2. Step 2: Convert to fraction form
    135,752.45/187,335.51 = 75,321.80/x
  3. Step 3: Cross multiply
    135,752.45x = 187,335.51 × 75,321.80
  4. Step 4: Simplify right side
    135,752.45x = 14,110,446,880.44
  5. Step 5: Solve for x
    x = 14,110,446,880.44/135,752.45
  6. Step 6: Final answer
    x = 103,942.49

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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.