Home / 99,817.20-149,725.80-92,600.10

Finding the Fourth Proportional to 99,817.20, 149,725.80 and 92,600.10

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Solution

The fourth proportional to 99,817.20, 149,725.80 and 92,600.10 is: 138,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,817.20 : 149,725.80 = 92,600.10 : x
  2. Step 2: Convert to fraction form
    99,817.20/149,725.80 = 92,600.10/x
  3. Step 3: Cross multiply
    99,817.20x = 149,725.80 × 92,600.10
  4. Step 4: Simplify right side
    99,817.20x = 13,864,624,052.58
  5. Step 5: Solve for x
    x = 13,864,624,052.58/99,817.20
  6. Step 6: Final answer
    x = 138,900.15

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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.