Home / 103,860.96-143,341.86-58,548.78

Finding the Fourth Proportional to 103,860.96, 143,341.86 and 58,548.78

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Solution

The fourth proportional to 103,860.96, 143,341.86 and 58,548.78 is: 80,805.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,860.96 : 143,341.86 = 58,548.78 : x
  2. Step 2: Convert to fraction form
    103,860.96/143,341.86 = 58,548.78/x
  3. Step 3: Cross multiply
    103,860.96x = 143,341.86 × 58,548.78
  4. Step 4: Simplify right side
    103,860.96x = 8,392,491,025.93
  5. Step 5: Solve for x
    x = 8,392,491,025.93/103,860.96
  6. Step 6: Final answer
    x = 80,805.06

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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.