Home / 99,900.20-137,581.62-97,722.92

Finding the Fourth Proportional to 99,900.20, 137,581.62 and 97,722.92

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Solution

The fourth proportional to 99,900.20, 137,581.62 and 97,722.92 is: 134,583.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,900.20 : 137,581.62 = 97,722.92 : x
  2. Step 2: Convert to fraction form
    99,900.20/137,581.62 = 97,722.92/x
  3. Step 3: Cross multiply
    99,900.20x = 137,581.62 × 97,722.92
  4. Step 4: Simplify right side
    99,900.20x = 13,444,877,644.73
  5. Step 5: Solve for x
    x = 13,444,877,644.73/99,900.20
  6. Step 6: Final answer
    x = 134,583.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.