Home / 126,861.78-174,903.30-109,147.08

Finding the Fourth Proportional to 126,861.78, 174,903.30 and 109,147.08

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Solution

The fourth proportional to 126,861.78, 174,903.30 and 109,147.08 is: 150,480.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,861.78 : 174,903.30 = 109,147.08 : x
  2. Step 2: Convert to fraction form
    126,861.78/174,903.30 = 109,147.08/x
  3. Step 3: Cross multiply
    126,861.78x = 174,903.30 × 109,147.08
  4. Step 4: Simplify right side
    126,861.78x = 19,090,184,477.36
  5. Step 5: Solve for x
    x = 19,090,184,477.36/126,861.78
  6. Step 6: Final answer
    x = 150,480.19

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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.