Home / 157,520.20-236,280.30-82,611.40

Finding the Fourth Proportional to 157,520.20, 236,280.30 and 82,611.40

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Solution

The fourth proportional to 157,520.20, 236,280.30 and 82,611.40 is: 123,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,520.20 : 236,280.30 = 82,611.40 : x
  2. Step 2: Convert to fraction form
    157,520.20/236,280.30 = 82,611.40/x
  3. Step 3: Cross multiply
    157,520.20x = 236,280.30 × 82,611.40
  4. Step 4: Simplify right side
    157,520.20x = 19,519,446,375.42
  5. Step 5: Solve for x
    x = 19,519,446,375.42/157,520.20
  6. Step 6: Final answer
    x = 123,917.10

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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.