Home / 115,876.98-159,898.86-68,142.06

Finding the Fourth Proportional to 115,876.98, 159,898.86 and 68,142.06

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Solution

The fourth proportional to 115,876.98, 159,898.86 and 68,142.06 is: 94,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,876.98 : 159,898.86 = 68,142.06 : x
  2. Step 2: Convert to fraction form
    115,876.98/159,898.86 = 68,142.06/x
  3. Step 3: Cross multiply
    115,876.98x = 159,898.86 × 68,142.06
  4. Step 4: Simplify right side
    115,876.98x = 10,895,837,712.05
  5. Step 5: Solve for x
    x = 10,895,837,712.05/115,876.98
  6. Step 6: Final answer
    x = 94,029.36

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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.