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Finding the Fourth Proportional to 145,351.24, 200,639.51 and 84,941.51

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Solution

The fourth proportional to 145,351.24, 200,639.51 and 84,941.51 is: 117,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,351.24 : 200,639.51 = 84,941.51 : x
  2. Step 2: Convert to fraction form
    145,351.24/200,639.51 = 84,941.51/x
  3. Step 3: Cross multiply
    145,351.24x = 200,639.51 × 84,941.51
  4. Step 4: Simplify right side
    145,351.24x = 17,042,622,945.06
  5. Step 5: Solve for x
    x = 17,042,622,945.06/145,351.24
  6. Step 6: Final answer
    x = 117,251.31

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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.