Home / 112,149.50-154,778.32-68,567.64

Finding the Fourth Proportional to 112,149.50, 154,778.32 and 68,567.64

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Solution

The fourth proportional to 112,149.50, 154,778.32 and 68,567.64 is: 94,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,149.50 : 154,778.32 = 68,567.64 : x
  2. Step 2: Convert to fraction form
    112,149.50/154,778.32 = 68,567.64/x
  3. Step 3: Cross multiply
    112,149.50x = 154,778.32 × 68,567.64
  4. Step 4: Simplify right side
    112,149.50x = 10,612,784,125.56
  5. Step 5: Solve for x
    x = 10,612,784,125.56/112,149.50
  6. Step 6: Final answer
    x = 94,630.69

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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.