Home / 99,727.19-138,205.75-97,834.76

Finding the Fourth Proportional to 99,727.19, 138,205.75 and 97,834.76

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Solution

The fourth proportional to 99,727.19, 138,205.75 and 97,834.76 is: 135,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,727.19 : 138,205.75 = 97,834.76 : x
  2. Step 2: Convert to fraction form
    99,727.19/138,205.75 = 97,834.76/x
  3. Step 3: Cross multiply
    99,727.19x = 138,205.75 × 97,834.76
  4. Step 4: Simplify right side
    99,727.19x = 13,521,325,690.84
  5. Step 5: Solve for x
    x = 13,521,325,690.84/99,727.19
  6. Step 6: Final answer
    x = 135,583.14

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.