Home / 156,965.86-216,617.26-85,350.80

Finding the Fourth Proportional to 156,965.86, 216,617.26 and 85,350.80

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Solution

The fourth proportional to 156,965.86, 216,617.26 and 85,350.80 is: 117,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.86 : 216,617.26 = 85,350.80 : x
  2. Step 2: Convert to fraction form
    156,965.86/216,617.26 = 85,350.80/x
  3. Step 3: Cross multiply
    156,965.86x = 216,617.26 × 85,350.80
  4. Step 4: Simplify right side
    156,965.86x = 18,488,456,434.81
  5. Step 5: Solve for x
    x = 18,488,456,434.81/156,965.86
  6. Step 6: Final answer
    x = 117,786.48

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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.