Home / 156,160.40-215,501.26-84,540.36

Finding the Fourth Proportional to 156,160.40, 215,501.26 and 84,540.36

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Solution

The fourth proportional to 156,160.40, 215,501.26 and 84,540.36 is: 116,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,160.40 : 215,501.26 = 84,540.36 : x
  2. Step 2: Convert to fraction form
    156,160.40/215,501.26 = 84,540.36/x
  3. Step 3: Cross multiply
    156,160.40x = 215,501.26 × 84,540.36
  4. Step 4: Simplify right side
    156,160.40x = 18,218,554,100.85
  5. Step 5: Solve for x
    x = 18,218,554,100.85/156,160.40
  6. Step 6: Final answer
    x = 116,665.65

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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.