Home / 112,214.40-168,321.60-111,436.80

Finding the Fourth Proportional to 112,214.40, 168,321.60 and 111,436.80

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Solution

The fourth proportional to 112,214.40, 168,321.60 and 111,436.80 is: 167,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,214.40 : 168,321.60 = 111,436.80 : x
  2. Step 2: Convert to fraction form
    112,214.40/168,321.60 = 111,436.80/x
  3. Step 3: Cross multiply
    112,214.40x = 168,321.60 × 111,436.80
  4. Step 4: Simplify right side
    112,214.40x = 18,757,220,474.88
  5. Step 5: Solve for x
    x = 18,757,220,474.88/112,214.40
  6. Step 6: Final answer
    x = 167,155.20

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1.5x scale

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.