Home / 147,722.36-203,854.07-90,357.46

Finding the Fourth Proportional to 147,722.36, 203,854.07 and 90,357.46

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Solution

The fourth proportional to 147,722.36, 203,854.07 and 90,357.46 is: 124,691.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,722.36 : 203,854.07 = 90,357.46 : x
  2. Step 2: Convert to fraction form
    147,722.36/203,854.07 = 90,357.46/x
  3. Step 3: Cross multiply
    147,722.36x = 203,854.07 × 90,357.46
  4. Step 4: Simplify right side
    147,722.36x = 18,419,736,043.87
  5. Step 5: Solve for x
    x = 18,419,736,043.87/147,722.36
  6. Step 6: Final answer
    x = 124,691.59

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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.