Home / 156,171.16-215,516.32-84,551.24

Finding the Fourth Proportional to 156,171.16, 215,516.32 and 84,551.24

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Solution

The fourth proportional to 156,171.16, 215,516.32 and 84,551.24 is: 116,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,171.16 : 215,516.32 = 84,551.24 : x
  2. Step 2: Convert to fraction form
    156,171.16/215,516.32 = 84,551.24/x
  3. Step 3: Cross multiply
    156,171.16x = 215,516.32 × 84,551.24
  4. Step 4: Simplify right side
    156,171.16x = 18,222,172,661.45
  5. Step 5: Solve for x
    x = 18,222,172,661.45/156,171.16
  6. Step 6: Final answer
    x = 116,680.78

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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.