Home / 145,072.98-217,478.22-51,556.86

Finding the Fourth Proportional to 145,072.98, 217,478.22 and 51,556.86

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Solution

The fourth proportional to 145,072.98, 217,478.22 and 51,556.86 is: 77,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,072.98 : 217,478.22 = 51,556.86 : x
  2. Step 2: Convert to fraction form
    145,072.98/217,478.22 = 51,556.86/x
  3. Step 3: Cross multiply
    145,072.98x = 217,478.22 × 51,556.86
  4. Step 4: Simplify right side
    145,072.98x = 11,212,494,141.59
  5. Step 5: Solve for x
    x = 11,212,494,141.59/145,072.98
  6. Step 6: Final answer
    x = 77,288.65

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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.