Home / 103,635.18-143,021.16-61,193.88

Finding the Fourth Proportional to 103,635.18, 143,021.16 and 61,193.88

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Solution

The fourth proportional to 103,635.18, 143,021.16 and 61,193.88 is: 84,450.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,635.18 : 143,021.16 = 61,193.88 : x
  2. Step 2: Convert to fraction form
    103,635.18/143,021.16 = 61,193.88/x
  3. Step 3: Cross multiply
    103,635.18x = 143,021.16 × 61,193.88
  4. Step 4: Simplify right side
    103,635.18x = 8,752,019,702.50
  5. Step 5: Solve for x
    x = 8,752,019,702.50/103,635.18
  6. Step 6: Final answer
    x = 84,450.28

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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.