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Finding the Fourth Proportional to 219,664.64, 303,133.92 and 124,168

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Solution

The fourth proportional to 219,664.64, 303,133.92 and 124,168 is: 171,349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,664.64 : 303,133.92 = 124,168 : x
  2. Step 2: Convert to fraction form
    219,664.64/303,133.92 = 124,168/x
  3. Step 3: Cross multiply
    219,664.64x = 303,133.92 × 124,168
  4. Step 4: Simplify right side
    219,664.64x = 37,639,532,578.56
  5. Step 5: Solve for x
    x = 37,639,532,578.56/219,664.64
  6. Step 6: Final answer
    x = 171,349.98

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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.