Home / 156,440.76-215,886.24-84,820.56

Finding the Fourth Proportional to 156,440.76, 215,886.24 and 84,820.56

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Solution

The fourth proportional to 156,440.76, 215,886.24 and 84,820.56 is: 117,051.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,440.76 : 215,886.24 = 84,820.56 : x
  2. Step 2: Convert to fraction form
    156,440.76/215,886.24 = 84,820.56/x
  3. Step 3: Cross multiply
    156,440.76x = 215,886.24 × 84,820.56
  4. Step 4: Simplify right side
    156,440.76x = 18,311,591,773.09
  5. Step 5: Solve for x
    x = 18,311,591,773.09/156,440.76
  6. Step 6: Final answer
    x = 117,051.28

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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.