Home / 112,931.76-169,171.77-67,928.26

Finding the Fourth Proportional to 112,931.76, 169,171.77 and 67,928.26

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Solution

The fourth proportional to 112,931.76, 169,171.77 and 67,928.26 is: 101,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,931.76 : 169,171.77 = 67,928.26 : x
  2. Step 2: Convert to fraction form
    112,931.76/169,171.77 = 67,928.26/x
  3. Step 3: Cross multiply
    112,931.76x = 169,171.77 × 67,928.26
  4. Step 4: Simplify right side
    112,931.76x = 11,491,543,977.22
  5. Step 5: Solve for x
    x = 11,491,543,977.22/112,931.76
  6. Step 6: Final answer
    x = 101,756.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.