Home / 156,947.37-216,584.80-85,329.20

Finding the Fourth Proportional to 156,947.37, 216,584.80 and 85,329.20

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Solution

The fourth proportional to 156,947.37, 216,584.80 and 85,329.20 is: 117,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,947.37 : 216,584.80 = 85,329.20 : x
  2. Step 2: Convert to fraction form
    156,947.37/216,584.80 = 85,329.20/x
  3. Step 3: Cross multiply
    156,947.37x = 216,584.80 × 85,329.20
  4. Step 4: Simplify right side
    156,947.37x = 18,481,007,716.16
  5. Step 5: Solve for x
    x = 18,481,007,716.16/156,947.37
  6. Step 6: Final answer
    x = 117,752.90

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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.