Home / 89,760.15-134,476.20-73,029.60

Finding the Fourth Proportional to 89,760.15, 134,476.20 and 73,029.60

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Solution

The fourth proportional to 89,760.15, 134,476.20 and 73,029.60 is: 109,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,760.15 : 134,476.20 = 73,029.60 : x
  2. Step 2: Convert to fraction form
    89,760.15/134,476.20 = 73,029.60/x
  3. Step 3: Cross multiply
    89,760.15x = 134,476.20 × 73,029.60
  4. Step 4: Simplify right side
    89,760.15x = 9,820,743,095.52
  5. Step 5: Solve for x
    x = 9,820,743,095.52/89,760.15
  6. Step 6: Final answer
    x = 109,410.95

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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.