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Finding the Fourth Proportional to 147,745.74, 203,896.76 and 90,367.06

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Solution

The fourth proportional to 147,745.74, 203,896.76 and 90,367.06 is: 124,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,745.74 : 203,896.76 = 90,367.06 : x
  2. Step 2: Convert to fraction form
    147,745.74/203,896.76 = 90,367.06/x
  3. Step 3: Cross multiply
    147,745.74x = 203,896.76 × 90,367.06
  4. Step 4: Simplify right side
    147,745.74x = 18,425,550,744.73
  5. Step 5: Solve for x
    x = 18,425,550,744.73/147,745.74
  6. Step 6: Final answer
    x = 124,711.21

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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.