Home / 171,945.02-257,834.57-72,078.39

Finding the Fourth Proportional to 171,945.02, 257,834.57 and 72,078.39

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Solution

The fourth proportional to 171,945.02, 257,834.57 and 72,078.39 is: 108,082.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,945.02 : 257,834.57 = 72,078.39 : x
  2. Step 2: Convert to fraction form
    171,945.02/257,834.57 = 72,078.39/x
  3. Step 3: Cross multiply
    171,945.02x = 257,834.57 × 72,078.39
  4. Step 4: Simplify right side
    171,945.02x = 18,584,300,331.55
  5. Step 5: Solve for x
    x = 18,584,300,331.55/171,945.02
  6. Step 6: Final answer
    x = 108,082.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.