Home / 98,305.11-146,790.89-78,087.66

Finding the Fourth Proportional to 98,305.11, 146,790.89 and 78,087.66

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Solution

The fourth proportional to 98,305.11, 146,790.89 and 78,087.66 is: 116,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,305.11 : 146,790.89 = 78,087.66 : x
  2. Step 2: Convert to fraction form
    98,305.11/146,790.89 = 78,087.66/x
  3. Step 3: Cross multiply
    98,305.11x = 146,790.89 × 78,087.66
  4. Step 4: Simplify right side
    98,305.11x = 11,462,557,562.27
  5. Step 5: Solve for x
    x = 11,462,557,562.27/98,305.11
  6. Step 6: Final answer
    x = 116,601.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.