Home / 112,218.75-154,861.88-61,917.75

Finding the Fourth Proportional to 112,218.75, 154,861.88 and 61,917.75

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Solution

The fourth proportional to 112,218.75, 154,861.88 and 61,917.75 is: 85,446.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.75 : 154,861.88 = 61,917.75 : x
  2. Step 2: Convert to fraction form
    112,218.75/154,861.88 = 61,917.75/x
  3. Step 3: Cross multiply
    112,218.75x = 154,861.88 × 61,917.75
  4. Step 4: Simplify right side
    112,218.75x = 9,588,698,860.78
  5. Step 5: Solve for x
    x = 9,588,698,860.78/112,218.75
  6. Step 6: Final answer
    x = 85,446.50

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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.