Home / 207,331.14-310,981.94-80,947.72

Finding the Fourth Proportional to 207,331.14, 310,981.94 and 80,947.72

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Solution

The fourth proportional to 207,331.14, 310,981.94 and 80,947.72 is: 121,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,331.14 : 310,981.94 = 80,947.72 : x
  2. Step 2: Convert to fraction form
    207,331.14/310,981.94 = 80,947.72/x
  3. Step 3: Cross multiply
    207,331.14x = 310,981.94 × 80,947.72
  4. Step 4: Simplify right side
    207,331.14x = 25,173,279,004.18
  5. Step 5: Solve for x
    x = 25,173,279,004.18/207,331.14
  6. Step 6: Final answer
    x = 121,415.81

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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.