Home / 112,824.89-155,769.14-72,608.54

Finding the Fourth Proportional to 112,824.89, 155,769.14 and 72,608.54

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Solution

The fourth proportional to 112,824.89, 155,769.14 and 72,608.54 is: 100,245.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,824.89 : 155,769.14 = 72,608.54 : x
  2. Step 2: Convert to fraction form
    112,824.89/155,769.14 = 72,608.54/x
  3. Step 3: Cross multiply
    112,824.89x = 155,769.14 × 72,608.54
  4. Step 4: Simplify right side
    112,824.89x = 11,310,169,650.93
  5. Step 5: Solve for x
    x = 11,310,169,650.93/112,824.89
  6. Step 6: Final answer
    x = 100,245.34

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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.