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Finding the Fourth Proportional to 147,602.26, 203,691 and 80,534.26

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Solution

The fourth proportional to 147,602.26, 203,691 and 80,534.26 is: 111,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,602.26 : 203,691 = 80,534.26 : x
  2. Step 2: Convert to fraction form
    147,602.26/203,691 = 80,534.26/x
  3. Step 3: Cross multiply
    147,602.26x = 203,691 × 80,534.26
  4. Step 4: Simplify right side
    147,602.26x = 16,404,103,953.66
  5. Step 5: Solve for x
    x = 16,404,103,953.66/147,602.26
  6. Step 6: Final answer
    x = 111,137.21

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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.