Home / 156,240.03-215,611.18-84,620.06

Finding the Fourth Proportional to 156,240.03, 215,611.18 and 84,620.06

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Solution

The fourth proportional to 156,240.03, 215,611.18 and 84,620.06 is: 116,775.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,240.03 : 215,611.18 = 84,620.06 : x
  2. Step 2: Convert to fraction form
    156,240.03/215,611.18 = 84,620.06/x
  3. Step 3: Cross multiply
    156,240.03x = 215,611.18 × 84,620.06
  4. Step 4: Simplify right side
    156,240.03x = 18,245,029,487.11
  5. Step 5: Solve for x
    x = 18,245,029,487.11/156,240.03
  6. Step 6: Final answer
    x = 116,775.64

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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.