Home / 142,235.82-213,361.92-53,490.06

Finding the Fourth Proportional to 142,235.82, 213,361.92 and 53,490.06

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Solution

The fourth proportional to 142,235.82, 213,361.92 and 53,490.06 is: 80,238.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,235.82 : 213,361.92 = 53,490.06 : x
  2. Step 2: Convert to fraction form
    142,235.82/213,361.92 = 53,490.06/x
  3. Step 3: Cross multiply
    142,235.82x = 213,361.92 × 53,490.06
  4. Step 4: Simplify right side
    142,235.82x = 11,412,741,902.52
  5. Step 5: Solve for x
    x = 11,412,741,902.52/142,235.82
  6. Step 6: Final answer
    x = 80,238.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.