Home / 133,212.33-199,688.63-53,226.45

Finding the Fourth Proportional to 133,212.33, 199,688.63 and 53,226.45

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Solution

The fourth proportional to 133,212.33, 199,688.63 and 53,226.45 is: 79,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,212.33 : 199,688.63 = 53,226.45 : x
  2. Step 2: Convert to fraction form
    133,212.33/199,688.63 = 53,226.45/x
  3. Step 3: Cross multiply
    133,212.33x = 199,688.63 × 53,226.45
  4. Step 4: Simplify right side
    133,212.33x = 10,628,716,614.13
  5. Step 5: Solve for x
    x = 10,628,716,614.13/133,212.33
  6. Step 6: Final answer
    x = 79,787.78

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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.