Home / 126,862.78-174,904.68-109,148.08

Finding the Fourth Proportional to 126,862.78, 174,904.68 and 109,148.08

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Solution

The fourth proportional to 126,862.78, 174,904.68 and 109,148.08 is: 150,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,862.78 : 174,904.68 = 109,148.08 : x
  2. Step 2: Convert to fraction form
    126,862.78/174,904.68 = 109,148.08/x
  3. Step 3: Cross multiply
    126,862.78x = 174,904.68 × 109,148.08
  4. Step 4: Simplify right side
    126,862.78x = 19,090,510,005.01
  5. Step 5: Solve for x
    x = 19,090,510,005.01/126,862.78
  6. Step 6: Final answer
    x = 150,481.57

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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.