Home / 112,469.45-155,203.12-66,558.85

Finding the Fourth Proportional to 112,469.45, 155,203.12 and 66,558.85

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Solution

The fourth proportional to 112,469.45, 155,203.12 and 66,558.85 is: 91,848.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,469.45 : 155,203.12 = 66,558.85 : x
  2. Step 2: Convert to fraction form
    112,469.45/155,203.12 = 66,558.85/x
  3. Step 3: Cross multiply
    112,469.45x = 155,203.12 × 66,558.85
  4. Step 4: Simplify right side
    112,469.45x = 10,330,140,878.80
  5. Step 5: Solve for x
    x = 10,330,140,878.80/112,469.45
  6. Step 6: Final answer
    x = 91,848.42

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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.