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Finding the Fourth Proportional to 111,847.68, 167,671.40 and 40,720.12

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Solution

The fourth proportional to 111,847.68, 167,671.40 and 40,720.12 is: 61,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,847.68 : 167,671.40 = 40,720.12 : x
  2. Step 2: Convert to fraction form
    111,847.68/167,671.40 = 40,720.12/x
  3. Step 3: Cross multiply
    111,847.68x = 167,671.40 × 40,720.12
  4. Step 4: Simplify right side
    111,847.68x = 6,827,599,528.57
  5. Step 5: Solve for x
    x = 6,827,599,528.57/111,847.68
  6. Step 6: Final answer
    x = 61,043.73

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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.