Home / 87,946.30-131,725.05-72,394.30

Finding the Fourth Proportional to 87,946.30, 131,725.05 and 72,394.30

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Solution

The fourth proportional to 87,946.30, 131,725.05 and 72,394.30 is: 108,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,946.30 : 131,725.05 = 72,394.30 : x
  2. Step 2: Convert to fraction form
    87,946.30/131,725.05 = 72,394.30/x
  3. Step 3: Cross multiply
    87,946.30x = 131,725.05 × 72,394.30
  4. Step 4: Simplify right side
    87,946.30x = 9,536,142,787.22
  5. Step 5: Solve for x
    x = 9,536,142,787.22/87,946.30
  6. Step 6: Final answer
    x = 108,431.43

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1.5x scale

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.