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Finding the Fourth Proportional to 98,255.84, 147,383.15 and 28,135.15

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Solution

The fourth proportional to 98,255.84, 147,383.15 and 28,135.15 is: 42,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,255.84 : 147,383.15 = 28,135.15 : x
  2. Step 2: Convert to fraction form
    98,255.84/147,383.15 = 28,135.15/x
  3. Step 3: Cross multiply
    98,255.84x = 147,383.15 × 28,135.15
  4. Step 4: Simplify right side
    98,255.84x = 4,146,646,523.59
  5. Step 5: Solve for x
    x = 4,146,646,523.59/98,255.84
  6. Step 6: Final answer
    x = 42,202.55

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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.