Home / 103,770.56-143,193.66-61,320.98

Finding the Fourth Proportional to 103,770.56, 143,193.66 and 61,320.98

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Solution

The fourth proportional to 103,770.56, 143,193.66 and 61,320.98 is: 84,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,770.56 : 143,193.66 = 61,320.98 : x
  2. Step 2: Convert to fraction form
    103,770.56/143,193.66 = 61,320.98/x
  3. Step 3: Cross multiply
    103,770.56x = 143,193.66 × 61,320.98
  4. Step 4: Simplify right side
    103,770.56x = 8,780,775,560.99
  5. Step 5: Solve for x
    x = 8,780,775,560.99/103,770.56
  6. Step 6: Final answer
    x = 84,617.21

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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.