Home / 156,140.82-215,474.46-84,520.62

Finding the Fourth Proportional to 156,140.82, 215,474.46 and 84,520.62

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Solution

The fourth proportional to 156,140.82, 215,474.46 and 84,520.62 is: 116,638.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,140.82 : 215,474.46 = 84,520.62 : x
  2. Step 2: Convert to fraction form
    156,140.82/215,474.46 = 84,520.62/x
  3. Step 3: Cross multiply
    156,140.82x = 215,474.46 × 84,520.62
  4. Step 4: Simplify right side
    156,140.82x = 18,212,034,953.37
  5. Step 5: Solve for x
    x = 18,212,034,953.37/156,140.82
  6. Step 6: Final answer
    x = 116,638.53

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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.