Home / 131,351.47-181,251.94-73,989.20

Finding the Fourth Proportional to 131,351.47, 181,251.94 and 73,989.20

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Solution

The fourth proportional to 131,351.47, 181,251.94 and 73,989.20 is: 102,097.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,351.47 : 181,251.94 = 73,989.20 : x
  2. Step 2: Convert to fraction form
    131,351.47/181,251.94 = 73,989.20/x
  3. Step 3: Cross multiply
    131,351.47x = 181,251.94 × 73,989.20
  4. Step 4: Simplify right side
    131,351.47x = 13,410,684,947.82
  5. Step 5: Solve for x
    x = 13,410,684,947.82/131,351.47
  6. Step 6: Final answer
    x = 102,097.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.