Home / 99,235.91-136,947.11-53,914.79

Finding the Fourth Proportional to 99,235.91, 136,947.11 and 53,914.79

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Solution

The fourth proportional to 99,235.91, 136,947.11 and 53,914.79 is: 74,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,235.91 : 136,947.11 = 53,914.79 : x
  2. Step 2: Convert to fraction form
    99,235.91/136,947.11 = 53,914.79/x
  3. Step 3: Cross multiply
    99,235.91x = 136,947.11 × 53,914.79
  4. Step 4: Simplify right side
    99,235.91x = 7,383,474,407.18
  5. Step 5: Solve for x
    x = 7,383,474,407.18/99,235.91
  6. Step 6: Final answer
    x = 74,403.25

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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.