Home / 129,828.88-179,164.39-70,212.88

Finding the Fourth Proportional to 129,828.88, 179,164.39 and 70,212.88

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Solution

The fourth proportional to 129,828.88, 179,164.39 and 70,212.88 is: 96,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,828.88 : 179,164.39 = 70,212.88 : x
  2. Step 2: Convert to fraction form
    129,828.88/179,164.39 = 70,212.88/x
  3. Step 3: Cross multiply
    129,828.88x = 179,164.39 × 70,212.88
  4. Step 4: Simplify right side
    129,828.88x = 12,579,646,919.52
  5. Step 5: Solve for x
    x = 12,579,646,919.52/129,828.88
  6. Step 6: Final answer
    x = 96,894.06

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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.