Home / 147,781.56-203,938.79-84,119.37

Finding the Fourth Proportional to 147,781.56, 203,938.79 and 84,119.37

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Solution

The fourth proportional to 147,781.56, 203,938.79 and 84,119.37 is: 116,084.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,781.56 : 203,938.79 = 84,119.37 : x
  2. Step 2: Convert to fraction form
    147,781.56/203,938.79 = 84,119.37/x
  3. Step 3: Cross multiply
    147,781.56x = 203,938.79 × 84,119.37
  4. Step 4: Simplify right side
    147,781.56x = 17,155,202,533.36
  5. Step 5: Solve for x
    x = 17,155,202,533.36/147,781.56
  6. Step 6: Final answer
    x = 116,084.87

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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.