Home / 89,551.45-134,415.20-68,293.81

Finding the Fourth Proportional to 89,551.45, 134,415.20 and 68,293.81

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Solution

The fourth proportional to 89,551.45, 134,415.20 and 68,293.81 is: 102,507.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,551.45 : 134,415.20 = 68,293.81 : x
  2. Step 2: Convert to fraction form
    89,551.45/134,415.20 = 68,293.81/x
  3. Step 3: Cross multiply
    89,551.45x = 134,415.20 × 68,293.81
  4. Step 4: Simplify right side
    89,551.45x = 9,179,726,129.91
  5. Step 5: Solve for x
    x = 9,179,726,129.91/89,551.45
  6. Step 6: Final answer
    x = 102,507.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.