Home / 98,945.91-136,551.96-55,910.43

Finding the Fourth Proportional to 98,945.91, 136,551.96 and 55,910.43

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Solution

The fourth proportional to 98,945.91, 136,551.96 and 55,910.43 is: 77,160.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,945.91 : 136,551.96 = 55,910.43 : x
  2. Step 2: Convert to fraction form
    98,945.91/136,551.96 = 55,910.43/x
  3. Step 3: Cross multiply
    98,945.91x = 136,551.96 × 55,910.43
  4. Step 4: Simplify right side
    98,945.91x = 7,634,678,800.94
  5. Step 5: Solve for x
    x = 7,634,678,800.94/98,945.91
  6. Step 6: Final answer
    x = 77,160.13

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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.