Home / 112,778.22-155,563.56-72,544.44

Finding the Fourth Proportional to 112,778.22, 155,563.56 and 72,544.44

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Solution

The fourth proportional to 112,778.22, 155,563.56 and 72,544.44 is: 100,066.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,778.22 : 155,563.56 = 72,544.44 : x
  2. Step 2: Convert to fraction form
    112,778.22/155,563.56 = 72,544.44/x
  3. Step 3: Cross multiply
    112,778.22x = 155,563.56 × 72,544.44
  4. Step 4: Simplify right side
    112,778.22x = 11,285,271,344.61
  5. Step 5: Solve for x
    x = 11,285,271,344.61/112,778.22
  6. Step 6: Final answer
    x = 100,066.05

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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.