Home / 129,948.03-179,371.53-76,213.44

Finding the Fourth Proportional to 129,948.03, 179,371.53 and 76,213.44

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Solution

The fourth proportional to 129,948.03, 179,371.53 and 76,213.44 is: 105,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,948.03 : 179,371.53 = 76,213.44 : x
  2. Step 2: Convert to fraction form
    129,948.03/179,371.53 = 76,213.44/x
  3. Step 3: Cross multiply
    129,948.03x = 179,371.53 × 76,213.44
  4. Step 4: Simplify right side
    129,948.03x = 13,670,521,339.36
  5. Step 5: Solve for x
    x = 13,670,521,339.36/129,948.03
  6. Step 6: Final answer
    x = 105,199.91

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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.