Home / 187,078.02-280,608.49-68,740.67

Finding the Fourth Proportional to 187,078.02, 280,608.49 and 68,740.67

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Solution

The fourth proportional to 187,078.02, 280,608.49 and 68,740.67 is: 103,107.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,078.02 : 280,608.49 = 68,740.67 : x
  2. Step 2: Convert to fraction form
    187,078.02/280,608.49 = 68,740.67/x
  3. Step 3: Cross multiply
    187,078.02x = 280,608.49 × 68,740.67
  4. Step 4: Simplify right side
    187,078.02x = 19,289,215,610.29
  5. Step 5: Solve for x
    x = 19,289,215,610.29/187,078.02
  6. Step 6: Final answer
    x = 103,107.87

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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.