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Finding the Fourth Proportional to 111,652, 154,079.84 and 61,351.36

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Solution

The fourth proportional to 111,652, 154,079.84 and 61,351.36 is: 84,664.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,652 : 154,079.84 = 61,351.36 : x
  2. Step 2: Convert to fraction form
    111,652/154,079.84 = 61,351.36/x
  3. Step 3: Cross multiply
    111,652x = 154,079.84 × 61,351.36
  4. Step 4: Simplify right side
    111,652x = 9,453,007,732.58
  5. Step 5: Solve for x
    x = 9,453,007,732.58/111,652
  6. Step 6: Final answer
    x = 84,664.92

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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.