Home / 133,293.60-199,864.80-54,315.36

Finding the Fourth Proportional to 133,293.60, 199,864.80 and 54,315.36

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Solution

The fourth proportional to 133,293.60, 199,864.80 and 54,315.36 is: 81,442.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,293.60 : 199,864.80 = 54,315.36 : x
  2. Step 2: Convert to fraction form
    133,293.60/199,864.80 = 54,315.36/x
  3. Step 3: Cross multiply
    133,293.60x = 199,864.80 × 54,315.36
  4. Step 4: Simplify right side
    133,293.60x = 10,855,728,563.33
  5. Step 5: Solve for x
    x = 10,855,728,563.33/133,293.60
  6. Step 6: Final answer
    x = 81,442.23

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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.