Home / 156,161.70-215,503.83-84,541.73

Finding the Fourth Proportional to 156,161.70, 215,503.83 and 84,541.73

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Solution

The fourth proportional to 156,161.70, 215,503.83 and 84,541.73 is: 116,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,161.70 : 215,503.83 = 84,541.73 : x
  2. Step 2: Convert to fraction form
    156,161.70/215,503.83 = 84,541.73/x
  3. Step 3: Cross multiply
    156,161.70x = 215,503.83 × 84,541.73
  4. Step 4: Simplify right side
    156,161.70x = 18,219,065,532.31
  5. Step 5: Solve for x
    x = 18,219,065,532.31/156,161.70
  6. Step 6: Final answer
    x = 116,667.95

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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.