Home / 156,189.21-215,516.75-92,516.73

Finding the Fourth Proportional to 156,189.21, 215,516.75 and 92,516.73

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Solution

The fourth proportional to 156,189.21, 215,516.75 and 92,516.73 is: 127,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,189.21 : 215,516.75 = 92,516.73 : x
  2. Step 2: Convert to fraction form
    156,189.21/215,516.75 = 92,516.73/x
  3. Step 3: Cross multiply
    156,189.21x = 215,516.75 × 92,516.73
  4. Step 4: Simplify right side
    156,189.21x = 19,938,904,507.64
  5. Step 5: Solve for x
    x = 19,938,904,507.64/156,189.21
  6. Step 6: Final answer
    x = 127,658.66

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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.