Home / 102,072.03-140,822.09-61,771.10

Finding the Fourth Proportional to 102,072.03, 140,822.09 and 61,771.10

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Solution

The fourth proportional to 102,072.03, 140,822.09 and 61,771.10 is: 85,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,072.03 : 140,822.09 = 61,771.10 : x
  2. Step 2: Convert to fraction form
    102,072.03/140,822.09 = 61,771.10/x
  3. Step 3: Cross multiply
    102,072.03x = 140,822.09 × 61,771.10
  4. Step 4: Simplify right side
    102,072.03x = 8,698,734,390.63
  5. Step 5: Solve for x
    x = 8,698,734,390.63/102,072.03
  6. Step 6: Final answer
    x = 85,221.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.