Home / 147,427.56-203,449.32-83,760.48

Finding the Fourth Proportional to 147,427.56, 203,449.32 and 83,760.48

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Solution

The fourth proportional to 147,427.56, 203,449.32 and 83,760.48 is: 115,589.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,427.56 : 203,449.32 = 83,760.48 : x
  2. Step 2: Convert to fraction form
    147,427.56/203,449.32 = 83,760.48/x
  3. Step 3: Cross multiply
    147,427.56x = 203,449.32 × 83,760.48
  4. Step 4: Simplify right side
    147,427.56x = 17,041,012,698.87
  5. Step 5: Solve for x
    x = 17,041,012,698.87/147,427.56
  6. Step 6: Final answer
    x = 115,589.06

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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.