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Finding the Fourth Proportional to 147,388.36, 203,401.40 and 83,736.96

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Solution

The fourth proportional to 147,388.36, 203,401.40 and 83,736.96 is: 115,560.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,388.36 : 203,401.40 = 83,736.96 : x
  2. Step 2: Convert to fraction form
    147,388.36/203,401.40 = 83,736.96/x
  3. Step 3: Cross multiply
    147,388.36x = 203,401.40 × 83,736.96
  4. Step 4: Simplify right side
    147,388.36x = 17,032,214,895.74
  5. Step 5: Solve for x
    x = 17,032,214,895.74/147,388.36
  6. Step 6: Final answer
    x = 115,560.11

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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.