Home / 129,991.16-179,391.48-73,411.04

Finding the Fourth Proportional to 129,991.16, 179,391.48 and 73,411.04

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Solution

The fourth proportional to 129,991.16, 179,391.48 and 73,411.04 is: 101,309.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,991.16 : 179,391.48 = 73,411.04 : x
  2. Step 2: Convert to fraction form
    129,991.16/179,391.48 = 73,411.04/x
  3. Step 3: Cross multiply
    129,991.16x = 179,391.48 × 73,411.04
  4. Step 4: Simplify right side
    129,991.16x = 13,169,315,113.94
  5. Step 5: Solve for x
    x = 13,169,315,113.94/129,991.16
  6. Step 6: Final answer
    x = 101,309.31

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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.