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Finding the Fourth Proportional to 156,560.50, 216,054.03 and 84,940.84

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Solution

The fourth proportional to 156,560.50, 216,054.03 and 84,940.84 is: 117,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,560.50 : 216,054.03 = 84,940.84 : x
  2. Step 2: Convert to fraction form
    156,560.50/216,054.03 = 84,940.84/x
  3. Step 3: Cross multiply
    156,560.50x = 216,054.03 × 84,940.84
  4. Step 4: Simplify right side
    156,560.50x = 18,351,810,793.59
  5. Step 5: Solve for x
    x = 18,351,810,793.59/156,560.50
  6. Step 6: Final answer
    x = 117,218.65

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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.