Home / 99,107.18-136,768.91-53,785.56

Finding the Fourth Proportional to 99,107.18, 136,768.91 and 53,785.56

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Solution

The fourth proportional to 99,107.18, 136,768.91 and 53,785.56 is: 74,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,107.18 : 136,768.91 = 53,785.56 : x
  2. Step 2: Convert to fraction form
    99,107.18/136,768.91 = 53,785.56/x
  3. Step 3: Cross multiply
    99,107.18x = 136,768.91 × 53,785.56
  4. Step 4: Simplify right side
    99,107.18x = 7,356,192,146.01
  5. Step 5: Solve for x
    x = 7,356,192,146.01/99,107.18
  6. Step 6: Final answer
    x = 74,224.62

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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.