Home / 243,099.36-335,438.82-135,664.20

Finding the Fourth Proportional to 243,099.36, 335,438.82 and 135,664.20

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Solution

The fourth proportional to 243,099.36, 335,438.82 and 135,664.20 is: 187,195.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,099.36 : 335,438.82 = 135,664.20 : x
  2. Step 2: Convert to fraction form
    243,099.36/335,438.82 = 135,664.20/x
  3. Step 3: Cross multiply
    243,099.36x = 335,438.82 × 135,664.20
  4. Step 4: Simplify right side
    243,099.36x = 45,507,039,164.24
  5. Step 5: Solve for x
    x = 45,507,039,164.24/243,099.36
  6. Step 6: Final answer
    x = 187,195.22

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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.