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Finding the Fourth Proportional to 156,728.94, 216,299.34 and 88,757.93

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Solution

The fourth proportional to 156,728.94, 216,299.34 and 88,757.93 is: 122,493.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,728.94 : 216,299.34 = 88,757.93 : x
  2. Step 2: Convert to fraction form
    156,728.94/216,299.34 = 88,757.93/x
  3. Step 3: Cross multiply
    156,728.94x = 216,299.34 × 88,757.93
  4. Step 4: Simplify right side
    156,728.94x = 19,198,280,597.27
  5. Step 5: Solve for x
    x = 19,198,280,597.27/156,728.94
  6. Step 6: Final answer
    x = 122,493.53

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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.