Home / 135,382.91-203,105.51-45,437.55

Finding the Fourth Proportional to 135,382.91, 203,105.51 and 45,437.55

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Solution

The fourth proportional to 135,382.91, 203,105.51 and 45,437.55 is: 68,166.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,382.91 : 203,105.51 = 45,437.55 : x
  2. Step 2: Convert to fraction form
    135,382.91/203,105.51 = 45,437.55/x
  3. Step 3: Cross multiply
    135,382.91x = 203,105.51 × 45,437.55
  4. Step 4: Simplify right side
    135,382.91x = 9,228,616,538.71
  5. Step 5: Solve for x
    x = 9,228,616,538.71/135,382.91
  6. Step 6: Final answer
    x = 68,166.78

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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.