Home / 85,731.62-119,022.31-83,165.54

Finding the Fourth Proportional to 85,731.62, 119,022.31 and 83,165.54

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Solution

The fourth proportional to 85,731.62, 119,022.31 and 83,165.54 is: 115,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,731.62 : 119,022.31 = 83,165.54 : x
  2. Step 2: Convert to fraction form
    85,731.62/119,022.31 = 83,165.54/x
  3. Step 3: Cross multiply
    85,731.62x = 119,022.31 × 83,165.54
  4. Step 4: Simplify right side
    85,731.62x = 9,898,554,192.04
  5. Step 5: Solve for x
    x = 9,898,554,192.04/85,731.62
  6. Step 6: Final answer
    x = 115,459.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.