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Finding the Fourth Proportional to 156,632.68, 216,163.78 and 88,649.72

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Solution

The fourth proportional to 156,632.68, 216,163.78 and 88,649.72 is: 122,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,632.68 : 216,163.78 = 88,649.72 : x
  2. Step 2: Convert to fraction form
    156,632.68/216,163.78 = 88,649.72/x
  3. Step 3: Cross multiply
    156,632.68x = 216,163.78 × 88,649.72
  4. Step 4: Simplify right side
    156,632.68x = 19,162,858,571.14
  5. Step 5: Solve for x
    x = 19,162,858,571.14/156,632.68
  6. Step 6: Final answer
    x = 122,342.66

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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.