Home / 115,721.76-173,302.34-80,083.22

Finding the Fourth Proportional to 115,721.76, 173,302.34 and 80,083.22

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Solution

The fourth proportional to 115,721.76, 173,302.34 and 80,083.22 is: 119,930.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,721.76 : 173,302.34 = 80,083.22 : x
  2. Step 2: Convert to fraction form
    115,721.76/173,302.34 = 80,083.22/x
  3. Step 3: Cross multiply
    115,721.76x = 173,302.34 × 80,083.22
  4. Step 4: Simplify right side
    115,721.76x = 13,878,608,153.81
  5. Step 5: Solve for x
    x = 13,878,608,153.81/115,721.76
  6. Step 6: Final answer
    x = 119,930.84

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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.