Home / 115,609.07-172,977.56-68,249.93

Finding the Fourth Proportional to 115,609.07, 172,977.56 and 68,249.93

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Solution

The fourth proportional to 115,609.07, 172,977.56 and 68,249.93 is: 102,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,609.07 : 172,977.56 = 68,249.93 : x
  2. Step 2: Convert to fraction form
    115,609.07/172,977.56 = 68,249.93/x
  3. Step 3: Cross multiply
    115,609.07x = 172,977.56 × 68,249.93
  4. Step 4: Simplify right side
    115,609.07x = 11,805,705,411.37
  5. Step 5: Solve for x
    x = 11,805,705,411.37/115,609.07
  6. Step 6: Final answer
    x = 102,117.46

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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.