Home / 156,171.30-215,513.79-84,550.74

Finding the Fourth Proportional to 156,171.30, 215,513.79 and 84,550.74

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Solution

The fourth proportional to 156,171.30, 215,513.79 and 84,550.74 is: 116,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,171.30 : 215,513.79 = 84,550.74 : x
  2. Step 2: Convert to fraction form
    156,171.30/215,513.79 = 84,550.74/x
  3. Step 3: Cross multiply
    156,171.30x = 215,513.79 × 84,550.74
  4. Step 4: Simplify right side
    156,171.30x = 18,221,850,424.70
  5. Step 5: Solve for x
    x = 18,221,850,424.70/156,171.30
  6. Step 6: Final answer
    x = 116,678.61

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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.