Home / 115,558.67-173,042.07-79,970.71

Finding the Fourth Proportional to 115,558.67, 173,042.07 and 79,970.71

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Solution

The fourth proportional to 115,558.67, 173,042.07 and 79,970.71 is: 119,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,558.67 : 173,042.07 = 79,970.71 : x
  2. Step 2: Convert to fraction form
    115,558.67/173,042.07 = 79,970.71/x
  3. Step 3: Cross multiply
    115,558.67x = 173,042.07 × 79,970.71
  4. Step 4: Simplify right side
    115,558.67x = 13,838,297,239.56
  5. Step 5: Solve for x
    x = 13,838,297,239.56/115,558.67
  6. Step 6: Final answer
    x = 119,751.27

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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.