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Finding the Fourth Proportional to 99,599.80, 149,481.30 and 98,822.20

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Solution

The fourth proportional to 99,599.80, 149,481.30 and 98,822.20 is: 148,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,599.80 : 149,481.30 = 98,822.20 : x
  2. Step 2: Convert to fraction form
    99,599.80/149,481.30 = 98,822.20/x
  3. Step 3: Cross multiply
    99,599.80x = 149,481.30 × 98,822.20
  4. Step 4: Simplify right side
    99,599.80x = 14,772,070,924.86
  5. Step 5: Solve for x
    x = 14,772,070,924.86/99,599.80
  6. Step 6: Final answer
    x = 148,314.26

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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.