Home / 135,678.24-203,478.40-45,711.16

Finding the Fourth Proportional to 135,678.24, 203,478.40 and 45,711.16

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Solution

The fourth proportional to 135,678.24, 203,478.40 and 45,711.16 is: 68,553.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,678.24 : 203,478.40 = 45,711.16 : x
  2. Step 2: Convert to fraction form
    135,678.24/203,478.40 = 45,711.16/x
  3. Step 3: Cross multiply
    135,678.24x = 203,478.40 × 45,711.16
  4. Step 4: Simplify right side
    135,678.24x = 9,301,233,698.94
  5. Step 5: Solve for x
    x = 9,301,233,698.94/135,678.24
  6. Step 6: Final answer
    x = 68,553.61

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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.