Home / 112,043.40-154,605.90-75,824.04

Finding the Fourth Proportional to 112,043.40, 154,605.90 and 75,824.04

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Solution

The fourth proportional to 112,043.40, 154,605.90 and 75,824.04 is: 104,627.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,043.40 : 154,605.90 = 75,824.04 : x
  2. Step 2: Convert to fraction form
    112,043.40/154,605.90 = 75,824.04/x
  3. Step 3: Cross multiply
    112,043.40x = 154,605.90 × 75,824.04
  4. Step 4: Simplify right side
    112,043.40x = 11,722,843,945.84
  5. Step 5: Solve for x
    x = 11,722,843,945.84/112,043.40
  6. Step 6: Final answer
    x = 104,627.71

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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.