Home / 104,289.20-143,920.21-61,270.49

Finding the Fourth Proportional to 104,289.20, 143,920.21 and 61,270.49

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Solution

The fourth proportional to 104,289.20, 143,920.21 and 61,270.49 is: 84,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,289.20 : 143,920.21 = 61,270.49 : x
  2. Step 2: Convert to fraction form
    104,289.20/143,920.21 = 61,270.49/x
  3. Step 3: Cross multiply
    104,289.20x = 143,920.21 × 61,270.49
  4. Step 4: Simplify right side
    104,289.20x = 8,818,062,109.11
  5. Step 5: Solve for x
    x = 8,818,062,109.11/104,289.20
  6. Step 6: Final answer
    x = 84,553.93

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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.