Home / 217,631.64-300,253.86-137,064.18

Finding the Fourth Proportional to 217,631.64, 300,253.86 and 137,064.18

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Solution

The fourth proportional to 217,631.64, 300,253.86 and 137,064.18 is: 189,099.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,631.64 : 300,253.86 = 137,064.18 : x
  2. Step 2: Convert to fraction form
    217,631.64/300,253.86 = 137,064.18/x
  3. Step 3: Cross multiply
    217,631.64x = 300,253.86 × 137,064.18
  4. Step 4: Simplify right side
    217,631.64x = 41,154,049,112.73
  5. Step 5: Solve for x
    x = 41,154,049,112.73/217,631.64
  6. Step 6: Final answer
    x = 189,099.57

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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.