Home / 142,664.28-196,842.89-84,491.64

Finding the Fourth Proportional to 142,664.28, 196,842.89 and 84,491.64

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Solution

The fourth proportional to 142,664.28, 196,842.89 and 84,491.64 is: 116,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,664.28 : 196,842.89 = 84,491.64 : x
  2. Step 2: Convert to fraction form
    142,664.28/196,842.89 = 84,491.64/x
  3. Step 3: Cross multiply
    142,664.28x = 196,842.89 × 84,491.64
  4. Step 4: Simplify right side
    142,664.28x = 16,631,578,175.98
  5. Step 5: Solve for x
    x = 16,631,578,175.98/142,664.28
  6. Step 6: Final answer
    x = 116,578.43

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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.