Home / 156,451.53-215,821.74-92,809.83

Finding the Fourth Proportional to 156,451.53, 215,821.74 and 92,809.83

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Solution

The fourth proportional to 156,451.53, 215,821.74 and 92,809.83 is: 128,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,451.53 : 215,821.74 = 92,809.83 : x
  2. Step 2: Convert to fraction form
    156,451.53/215,821.74 = 92,809.83/x
  3. Step 3: Cross multiply
    156,451.53x = 215,821.74 × 92,809.83
  4. Step 4: Simplify right side
    156,451.53x = 20,030,378,999.70
  5. Step 5: Solve for x
    x = 20,030,378,999.70/156,451.53
  6. Step 6: Final answer
    x = 128,029.29

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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.