Home / 168,082.72-231,951.02-91,602.40

Finding the Fourth Proportional to 168,082.72, 231,951.02 and 91,602.40

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Solution

The fourth proportional to 168,082.72, 231,951.02 and 91,602.40 is: 126,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,082.72 : 231,951.02 = 91,602.40 : x
  2. Step 2: Convert to fraction form
    168,082.72/231,951.02 = 91,602.40/x
  3. Step 3: Cross multiply
    168,082.72x = 231,951.02 × 91,602.40
  4. Step 4: Simplify right side
    168,082.72x = 21,247,270,114.45
  5. Step 5: Solve for x
    x = 21,247,270,114.45/168,082.72
  6. Step 6: Final answer
    x = 126,409.60

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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.