Home / 156,224.67-215,592.14-87,311.10

Finding the Fourth Proportional to 156,224.67, 215,592.14 and 87,311.10

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Solution

The fourth proportional to 156,224.67, 215,592.14 and 87,311.10 is: 120,490.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,224.67 : 215,592.14 = 87,311.10 : x
  2. Step 2: Convert to fraction form
    156,224.67/215,592.14 = 87,311.10/x
  3. Step 3: Cross multiply
    156,224.67x = 215,592.14 × 87,311.10
  4. Step 4: Simplify right side
    156,224.67x = 18,823,586,894.75
  5. Step 5: Solve for x
    x = 18,823,586,894.75/156,224.67
  6. Step 6: Final answer
    x = 120,490.49

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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.