Home / 143,247.63-197,670.14-82,822.15

Finding the Fourth Proportional to 143,247.63, 197,670.14 and 82,822.15

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Solution

The fourth proportional to 143,247.63, 197,670.14 and 82,822.15 is: 114,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,247.63 : 197,670.14 = 82,822.15 : x
  2. Step 2: Convert to fraction form
    143,247.63/197,670.14 = 82,822.15/x
  3. Step 3: Cross multiply
    143,247.63x = 197,670.14 × 82,822.15
  4. Step 4: Simplify right side
    143,247.63x = 16,371,465,985.60
  5. Step 5: Solve for x
    x = 16,371,465,985.60/143,247.63
  6. Step 6: Final answer
    x = 114,287.87

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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.