Home / 103,664.70-143,058.83-61,223.13

Finding the Fourth Proportional to 103,664.70, 143,058.83 and 61,223.13

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Solution

The fourth proportional to 103,664.70, 143,058.83 and 61,223.13 is: 84,488.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,664.70 : 143,058.83 = 61,223.13 : x
  2. Step 2: Convert to fraction form
    103,664.70/143,058.83 = 61,223.13/x
  3. Step 3: Cross multiply
    103,664.70x = 143,058.83 × 61,223.13
  4. Step 4: Simplify right side
    103,664.70x = 8,758,509,040.62
  5. Step 5: Solve for x
    x = 8,758,509,040.62/103,664.70
  6. Step 6: Final answer
    x = 84,488.83

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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.