Home / 143,066.87-197,386.58-82,629.53

Finding the Fourth Proportional to 143,066.87, 197,386.58 and 82,629.53

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Solution

The fourth proportional to 143,066.87, 197,386.58 and 82,629.53 is: 114,002.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,066.87 : 197,386.58 = 82,629.53 : x
  2. Step 2: Convert to fraction form
    143,066.87/197,386.58 = 82,629.53/x
  3. Step 3: Cross multiply
    143,066.87x = 197,386.58 × 82,629.53
  4. Step 4: Simplify right side
    143,066.87x = 16,309,959,920.56
  5. Step 5: Solve for x
    x = 16,309,959,920.56/143,066.87
  6. Step 6: Final answer
    x = 114,002.35

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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.