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Finding the Fourth Proportional to 100,915.74, 151,392.06 and 41,719.32

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Solution

The fourth proportional to 100,915.74, 151,392.06 and 41,719.32 is: 62,586.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,915.74 : 151,392.06 = 41,719.32 : x
  2. Step 2: Convert to fraction form
    100,915.74/151,392.06 = 41,719.32/x
  3. Step 3: Cross multiply
    100,915.74x = 151,392.06 × 41,719.32
  4. Step 4: Simplify right side
    100,915.74x = 6,315,973,796.60
  5. Step 5: Solve for x
    x = 6,315,973,796.60/100,915.74
  6. Step 6: Final answer
    x = 62,586.61

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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.