Home / 104,421.24-143,992.35-61,971.57

Finding the Fourth Proportional to 104,421.24, 143,992.35 and 61,971.57

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Solution

The fourth proportional to 104,421.24, 143,992.35 and 61,971.57 is: 85,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,421.24 : 143,992.35 = 61,971.57 : x
  2. Step 2: Convert to fraction form
    104,421.24/143,992.35 = 61,971.57/x
  3. Step 3: Cross multiply
    104,421.24x = 143,992.35 × 61,971.57
  4. Step 4: Simplify right side
    104,421.24x = 8,923,431,997.49
  5. Step 5: Solve for x
    x = 8,923,431,997.49/104,421.24
  6. Step 6: Final answer
    x = 85,456.10

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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.