Home / 207,395.10-311,014.89-89,005.50

Finding the Fourth Proportional to 207,395.10, 311,014.89 and 89,005.50

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Solution

The fourth proportional to 207,395.10, 311,014.89 and 89,005.50 is: 133,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,395.10 : 311,014.89 = 89,005.50 : x
  2. Step 2: Convert to fraction form
    207,395.10/311,014.89 = 89,005.50/x
  3. Step 3: Cross multiply
    207,395.10x = 311,014.89 × 89,005.50
  4. Step 4: Simplify right side
    207,395.10x = 27,682,035,791.90
  5. Step 5: Solve for x
    x = 27,682,035,791.90/207,395.10
  6. Step 6: Final answer
    x = 133,474.88

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1.5x scale

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.