Home / 99,110.30-136,772.30-53,788.28

Finding the Fourth Proportional to 99,110.30, 136,772.30 and 53,788.28

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Solution

The fourth proportional to 99,110.30, 136,772.30 and 53,788.28 is: 74,227.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,110.30 : 136,772.30 = 53,788.28 : x
  2. Step 2: Convert to fraction form
    99,110.30/136,772.30 = 53,788.28/x
  3. Step 3: Cross multiply
    99,110.30x = 136,772.30 × 53,788.28
  4. Step 4: Simplify right side
    99,110.30x = 7,356,745,815.84
  5. Step 5: Solve for x
    x = 7,356,745,815.84/99,110.30
  6. Step 6: Final answer
    x = 74,227.87

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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.