Home / 156,727.80-216,283.70-85,107.24

Finding the Fourth Proportional to 156,727.80, 216,283.70 and 85,107.24

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Solution

The fourth proportional to 156,727.80, 216,283.70 and 85,107.24 is: 117,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,727.80 : 216,283.70 = 85,107.24 : x
  2. Step 2: Convert to fraction form
    156,727.80/216,283.70 = 85,107.24/x
  3. Step 3: Cross multiply
    156,727.80x = 216,283.70 × 85,107.24
  4. Step 4: Simplify right side
    156,727.80x = 18,407,308,763.99
  5. Step 5: Solve for x
    x = 18,407,308,763.99/156,727.80
  6. Step 6: Final answer
    x = 117,447.63

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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.