Home / 140,772.56-194,192.48-87,040.40

Finding the Fourth Proportional to 140,772.56, 194,192.48 and 87,040.40

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Solution

The fourth proportional to 140,772.56, 194,192.48 and 87,040.40 is: 120,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,772.56 : 194,192.48 = 87,040.40 : x
  2. Step 2: Convert to fraction form
    140,772.56/194,192.48 = 87,040.40/x
  3. Step 3: Cross multiply
    140,772.56x = 194,192.48 × 87,040.40
  4. Step 4: Simplify right side
    140,772.56x = 16,902,591,136.19
  5. Step 5: Solve for x
    x = 16,902,591,136.19/140,772.56
  6. Step 6: Final answer
    x = 120,070.21

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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.