Home / 156,153.55-215,855.08-139,324.58

Finding the Fourth Proportional to 156,153.55, 215,855.08 and 139,324.58

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Solution

The fourth proportional to 156,153.55, 215,855.08 and 139,324.58 is: 192,591.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,153.55 : 215,855.08 = 139,324.58 : x
  2. Step 2: Convert to fraction form
    156,153.55/215,855.08 = 139,324.58/x
  3. Step 3: Cross multiply
    156,153.55x = 215,855.08 × 139,324.58
  4. Step 4: Simplify right side
    156,153.55x = 30,073,918,553.19
  5. Step 5: Solve for x
    x = 30,073,918,553.19/156,153.55
  6. Step 6: Final answer
    x = 192,591.96

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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.