Home / 101,915.57-140,638.78-56,596.44

Finding the Fourth Proportional to 101,915.57, 140,638.78 and 56,596.44

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Solution

The fourth proportional to 101,915.57, 140,638.78 and 56,596.44 is: 78,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,915.57 : 140,638.78 = 56,596.44 : x
  2. Step 2: Convert to fraction form
    101,915.57/140,638.78 = 56,596.44/x
  3. Step 3: Cross multiply
    101,915.57x = 140,638.78 × 56,596.44
  4. Step 4: Simplify right side
    101,915.57x = 7,959,654,872.08
  5. Step 5: Solve for x
    x = 7,959,654,872.08/101,915.57
  6. Step 6: Final answer
    x = 78,100.48

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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.