Home / 126,102.72-174,019.68-69,519.36

Finding the Fourth Proportional to 126,102.72, 174,019.68 and 69,519.36

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Solution

The fourth proportional to 126,102.72, 174,019.68 and 69,519.36 is: 95,935.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,102.72 : 174,019.68 = 69,519.36 : x
  2. Step 2: Convert to fraction form
    126,102.72/174,019.68 = 69,519.36/x
  3. Step 3: Cross multiply
    126,102.72x = 174,019.68 × 69,519.36
  4. Step 4: Simplify right side
    126,102.72x = 12,097,736,781.00
  5. Step 5: Solve for x
    x = 12,097,736,781.00/126,102.72
  6. Step 6: Final answer
    x = 95,935.57

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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.