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Finding the Fourth Proportional to 98,671.88, 148,046.74 and 43,229

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Solution

The fourth proportional to 98,671.88, 148,046.74 and 43,229 is: 64,860.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,671.88 : 148,046.74 = 43,229 : x
  2. Step 2: Convert to fraction form
    98,671.88/148,046.74 = 43,229/x
  3. Step 3: Cross multiply
    98,671.88x = 148,046.74 × 43,229
  4. Step 4: Simplify right side
    98,671.88x = 6,399,912,523.46
  5. Step 5: Solve for x
    x = 6,399,912,523.46/98,671.88
  6. Step 6: Final answer
    x = 64,860.55

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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.