Home / 103,992.21-143,443.18-68,184.54

Finding the Fourth Proportional to 103,992.21, 143,443.18 and 68,184.54

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Solution

The fourth proportional to 103,992.21, 143,443.18 and 68,184.54 is: 94,051.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,992.21 : 143,443.18 = 68,184.54 : x
  2. Step 2: Convert to fraction form
    103,992.21/143,443.18 = 68,184.54/x
  3. Step 3: Cross multiply
    103,992.21x = 143,443.18 × 68,184.54
  4. Step 4: Simplify right side
    103,992.21x = 9,780,606,356.76
  5. Step 5: Solve for x
    x = 9,780,606,356.76/103,992.21
  6. Step 6: Final answer
    x = 94,051.34

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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.