Home / 115,721.36-173,301.77-80,082.84

Finding the Fourth Proportional to 115,721.36, 173,301.77 and 80,082.84

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Solution

The fourth proportional to 115,721.36, 173,301.77 and 80,082.84 is: 119,930.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,721.36 : 173,301.77 = 80,082.84 : x
  2. Step 2: Convert to fraction form
    115,721.36/173,301.77 = 80,082.84/x
  3. Step 3: Cross multiply
    115,721.36x = 173,301.77 × 80,082.84
  4. Step 4: Simplify right side
    115,721.36x = 13,878,497,518.21
  5. Step 5: Solve for x
    x = 13,878,497,518.21/115,721.36
  6. Step 6: Final answer
    x = 119,930.31

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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.