Home / 144,802.27-217,285.62-78,240.79

Finding the Fourth Proportional to 144,802.27, 217,285.62 and 78,240.79

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Solution

The fourth proportional to 144,802.27, 217,285.62 and 78,240.79 is: 117,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,802.27 : 217,285.62 = 78,240.79 : x
  2. Step 2: Convert to fraction form
    144,802.27/217,285.62 = 78,240.79/x
  3. Step 3: Cross multiply
    144,802.27x = 217,285.62 × 78,240.79
  4. Step 4: Simplify right side
    144,802.27x = 17,000,598,564.44
  5. Step 5: Solve for x
    x = 17,000,598,564.44/144,802.27
  6. Step 6: Final answer
    x = 117,405.61

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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.