Home / 90,850.92-136,187.86-43,453.68

Finding the Fourth Proportional to 90,850.92, 136,187.86 and 43,453.68

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Solution

The fourth proportional to 90,850.92, 136,187.86 and 43,453.68 is: 65,138.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,850.92 : 136,187.86 = 43,453.68 : x
  2. Step 2: Convert to fraction form
    90,850.92/136,187.86 = 43,453.68/x
  3. Step 3: Cross multiply
    90,850.92x = 136,187.86 × 43,453.68
  4. Step 4: Simplify right side
    90,850.92x = 5,917,863,688.32
  5. Step 5: Solve for x
    x = 5,917,863,688.32/90,850.92
  6. Step 6: Final answer
    x = 65,138.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.