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Finding the Fourth Proportional to 168,080.50, 231,951.09 and 101,012.50

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Solution

The fourth proportional to 168,080.50, 231,951.09 and 101,012.50 is: 139,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,080.50 : 231,951.09 = 101,012.50 : x
  2. Step 2: Convert to fraction form
    168,080.50/231,951.09 = 101,012.50/x
  3. Step 3: Cross multiply
    168,080.50x = 231,951.09 × 101,012.50
  4. Step 4: Simplify right side
    168,080.50x = 23,429,959,478.63
  5. Step 5: Solve for x
    x = 23,429,959,478.63/168,080.50
  6. Step 6: Final answer
    x = 139,397.25

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1.5x scale

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.