Home / 129,828.84-179,165.54-73,240.04

Finding the Fourth Proportional to 129,828.84, 179,165.54 and 73,240.04

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Solution

The fourth proportional to 129,828.84, 179,165.54 and 73,240.04 is: 101,072.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,828.84 : 179,165.54 = 73,240.04 : x
  2. Step 2: Convert to fraction form
    129,828.84/179,165.54 = 73,240.04/x
  3. Step 3: Cross multiply
    129,828.84x = 179,165.54 × 73,240.04
  4. Step 4: Simplify right side
    129,828.84x = 13,122,091,316.22
  5. Step 5: Solve for x
    x = 13,122,091,316.22/129,828.84
  6. Step 6: Final answer
    x = 101,072.24

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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.