Home / 101,915.18-140,638.26-56,596.06

Finding the Fourth Proportional to 101,915.18, 140,638.26 and 56,596.06

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Solution

The fourth proportional to 101,915.18, 140,638.26 and 56,596.06 is: 78,099.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,915.18 : 140,638.26 = 56,596.06 : x
  2. Step 2: Convert to fraction form
    101,915.18/140,638.26 = 56,596.06/x
  3. Step 3: Cross multiply
    101,915.18x = 140,638.26 × 56,596.06
  4. Step 4: Simplify right side
    101,915.18x = 7,959,571,401.26
  5. Step 5: Solve for x
    x = 7,959,571,401.26/101,915.18
  6. Step 6: Final answer
    x = 78,099.96

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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.