Home / 129,221.88-178,300.06-75,496.52

Finding the Fourth Proportional to 129,221.88, 178,300.06 and 75,496.52

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Solution

The fourth proportional to 129,221.88, 178,300.06 and 75,496.52 is: 104,169.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,221.88 : 178,300.06 = 75,496.52 : x
  2. Step 2: Convert to fraction form
    129,221.88/178,300.06 = 75,496.52/x
  3. Step 3: Cross multiply
    129,221.88x = 178,300.06 × 75,496.52
  4. Step 4: Simplify right side
    129,221.88x = 13,461,033,668.31
  5. Step 5: Solve for x
    x = 13,461,033,668.31/129,221.88
  6. Step 6: Final answer
    x = 104,169.93

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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.