Home / 129,741.90-179,043.84-73,153.28

Finding the Fourth Proportional to 129,741.90, 179,043.84 and 73,153.28

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Solution

The fourth proportional to 129,741.90, 179,043.84 and 73,153.28 is: 100,951.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,741.90 : 179,043.84 = 73,153.28 : x
  2. Step 2: Convert to fraction form
    129,741.90/179,043.84 = 73,153.28/x
  3. Step 3: Cross multiply
    129,741.90x = 179,043.84 × 73,153.28
  4. Step 4: Simplify right side
    129,741.90x = 13,097,644,159.80
  5. Step 5: Solve for x
    x = 13,097,644,159.80/129,741.90
  6. Step 6: Final answer
    x = 100,951.54

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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.