Home / 156,269.12-215,651.36-84,649.60

Finding the Fourth Proportional to 156,269.12, 215,651.36 and 84,649.60

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Solution

The fourth proportional to 156,269.12, 215,651.36 and 84,649.60 is: 116,816.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,269.12 : 215,651.36 = 84,649.60 : x
  2. Step 2: Convert to fraction form
    156,269.12/215,651.36 = 84,649.60/x
  3. Step 3: Cross multiply
    156,269.12x = 215,651.36 × 84,649.60
  4. Step 4: Simplify right side
    156,269.12x = 18,254,801,363.46
  5. Step 5: Solve for x
    x = 18,254,801,363.46/156,269.12
  6. Step 6: Final answer
    x = 116,816.43

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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.