Home / 143,322.90-197,784.63-79,664.46

Finding the Fourth Proportional to 143,322.90, 197,784.63 and 79,664.46

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Solution

The fourth proportional to 143,322.90, 197,784.63 and 79,664.46 is: 109,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,322.90 : 197,784.63 = 79,664.46 : x
  2. Step 2: Convert to fraction form
    143,322.90/197,784.63 = 79,664.46/x
  3. Step 3: Cross multiply
    143,322.90x = 197,784.63 × 79,664.46
  4. Step 4: Simplify right side
    143,322.90x = 15,756,405,745.25
  5. Step 5: Solve for x
    x = 15,756,405,745.25/143,322.90
  6. Step 6: Final answer
    x = 109,936.41

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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.