Home / 215,034.72-296,786.70-124,378.08

Finding the Fourth Proportional to 215,034.72, 296,786.70 and 124,378.08

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Solution

The fourth proportional to 215,034.72, 296,786.70 and 124,378.08 is: 171,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,034.72 : 296,786.70 = 124,378.08 : x
  2. Step 2: Convert to fraction form
    215,034.72/296,786.70 = 124,378.08/x
  3. Step 3: Cross multiply
    215,034.72x = 296,786.70 × 124,378.08
  4. Step 4: Simplify right side
    215,034.72x = 36,913,759,915.54
  5. Step 5: Solve for x
    x = 36,913,759,915.54/215,034.72
  6. Step 6: Final answer
    x = 171,664.18

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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.