Home / 135,515.17-203,282.78-40,737.88

Finding the Fourth Proportional to 135,515.17, 203,282.78 and 40,737.88

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Solution

The fourth proportional to 135,515.17, 203,282.78 and 40,737.88 is: 61,109.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,515.17 : 203,282.78 = 40,737.88 : x
  2. Step 2: Convert to fraction form
    135,515.17/203,282.78 = 40,737.88/x
  3. Step 3: Cross multiply
    135,515.17x = 203,282.78 × 40,737.88
  4. Step 4: Simplify right side
    135,515.17x = 8,281,308,785.81
  5. Step 5: Solve for x
    x = 8,281,308,785.81/135,515.17
  6. Step 6: Final answer
    x = 61,109.83

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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.