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Finding the Fourth Proportional to 112,204.80, 168,436.80 and 67,881.60

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Solution

The fourth proportional to 112,204.80, 168,436.80 and 67,881.60 is: 101,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,204.80 : 168,436.80 = 67,881.60 : x
  2. Step 2: Convert to fraction form
    112,204.80/168,436.80 = 67,881.60/x
  3. Step 3: Cross multiply
    112,204.80x = 168,436.80 × 67,881.60
  4. Step 4: Simplify right side
    112,204.80x = 11,433,759,482.88
  5. Step 5: Solve for x
    x = 11,433,759,482.88/112,204.80
  6. Step 6: Final answer
    x = 101,900.81

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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.