Home / 156,504.29-215,976.38-84,884.90

Finding the Fourth Proportional to 156,504.29, 215,976.38 and 84,884.90

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Solution

The fourth proportional to 156,504.29, 215,976.38 and 84,884.90 is: 117,141.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,504.29 : 215,976.38 = 84,884.90 : x
  2. Step 2: Convert to fraction form
    156,504.29/215,976.38 = 84,884.90/x
  3. Step 3: Cross multiply
    156,504.29x = 215,976.38 × 84,884.90
  4. Step 4: Simplify right side
    156,504.29x = 18,333,131,914.36
  5. Step 5: Solve for x
    x = 18,333,131,914.36/156,504.29
  6. Step 6: Final answer
    x = 117,141.41

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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.