Home / 135,084.20-202,502.40-51,915.56

Finding the Fourth Proportional to 135,084.20, 202,502.40 and 51,915.56

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Solution

The fourth proportional to 135,084.20, 202,502.40 and 51,915.56 is: 77,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,084.20 : 202,502.40 = 51,915.56 : x
  2. Step 2: Convert to fraction form
    135,084.20/202,502.40 = 51,915.56/x
  3. Step 3: Cross multiply
    135,084.20x = 202,502.40 × 51,915.56
  4. Step 4: Simplify right side
    135,084.20x = 10,513,025,497.34
  5. Step 5: Solve for x
    x = 10,513,025,497.34/135,084.20
  6. Step 6: Final answer
    x = 77,825.72

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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.