Home / 112,439.75-155,143.96-67,103.24

Finding the Fourth Proportional to 112,439.75, 155,143.96 and 67,103.24

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Solution

The fourth proportional to 112,439.75, 155,143.96 and 67,103.24 is: 92,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,439.75 : 155,143.96 = 67,103.24 : x
  2. Step 2: Convert to fraction form
    112,439.75/155,143.96 = 67,103.24/x
  3. Step 3: Cross multiply
    112,439.75x = 155,143.96 × 67,103.24
  4. Step 4: Simplify right side
    112,439.75x = 10,410,661,438.95
  5. Step 5: Solve for x
    x = 10,410,661,438.95/112,439.75
  6. Step 6: Final answer
    x = 92,588.80

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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.