Home / 140,130.66-193,313.70-82,731.54

Finding the Fourth Proportional to 140,130.66, 193,313.70 and 82,731.54

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Solution

The fourth proportional to 140,130.66, 193,313.70 and 82,731.54 is: 114,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,130.66 : 193,313.70 = 82,731.54 : x
  2. Step 2: Convert to fraction form
    140,130.66/193,313.70 = 82,731.54/x
  3. Step 3: Cross multiply
    140,130.66x = 193,313.70 × 82,731.54
  4. Step 4: Simplify right side
    140,130.66x = 15,993,140,104.10
  5. Step 5: Solve for x
    x = 15,993,140,104.10/140,130.66
  6. Step 6: Final answer
    x = 114,130.20

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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.