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Finding the Fourth Proportional to 115,649.94, 159,578.79 and 67,262.58

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Solution

The fourth proportional to 115,649.94, 159,578.79 and 67,262.58 is: 92,811.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,649.94 : 159,578.79 = 67,262.58 : x
  2. Step 2: Convert to fraction form
    115,649.94/159,578.79 = 67,262.58/x
  3. Step 3: Cross multiply
    115,649.94x = 159,578.79 × 67,262.58
  4. Step 4: Simplify right side
    115,649.94x = 10,733,681,128.68
  5. Step 5: Solve for x
    x = 10,733,681,128.68/115,649.94
  6. Step 6: Final answer
    x = 92,811.82

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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.