Home / 156,371.50-215,791.45-84,749.68

Finding the Fourth Proportional to 156,371.50, 215,791.45 and 84,749.68

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Solution

The fourth proportional to 156,371.50, 215,791.45 and 84,749.68 is: 116,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,371.50 : 215,791.45 = 84,749.68 : x
  2. Step 2: Convert to fraction form
    156,371.50/215,791.45 = 84,749.68/x
  3. Step 3: Cross multiply
    156,371.50x = 215,791.45 × 84,749.68
  4. Step 4: Simplify right side
    156,371.50x = 18,288,256,334.24
  5. Step 5: Solve for x
    x = 18,288,256,334.24/156,371.50
  6. Step 6: Final answer
    x = 116,953.90

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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.