Home / 105,198.52-157,876.14-77,190.94

Finding the Fourth Proportional to 105,198.52, 157,876.14 and 77,190.94

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Solution

The fourth proportional to 105,198.52, 157,876.14 and 77,190.94 is: 115,843.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,198.52 : 157,876.14 = 77,190.94 : x
  2. Step 2: Convert to fraction form
    105,198.52/157,876.14 = 77,190.94/x
  3. Step 3: Cross multiply
    105,198.52x = 157,876.14 × 77,190.94
  4. Step 4: Simplify right side
    105,198.52x = 12,186,607,650.17
  5. Step 5: Solve for x
    x = 12,186,607,650.17/105,198.52
  6. Step 6: Final answer
    x = 115,843.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.