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Finding the Fourth Proportional to 132,995.43, 183,461.09 and 85,194.90

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Solution

The fourth proportional to 132,995.43, 183,461.09 and 85,194.90 is: 117,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,995.43 : 183,461.09 = 85,194.90 : x
  2. Step 2: Convert to fraction form
    132,995.43/183,461.09 = 85,194.90/x
  3. Step 3: Cross multiply
    132,995.43x = 183,461.09 × 85,194.90
  4. Step 4: Simplify right side
    132,995.43x = 15,629,948,790.47
  5. Step 5: Solve for x
    x = 15,629,948,790.47/132,995.43
  6. Step 6: Final answer
    x = 117,522.45

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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.