Home / 208,072.11-311,976.95-114,643.47

Finding the Fourth Proportional to 208,072.11, 311,976.95 and 114,643.47

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Solution

The fourth proportional to 208,072.11, 311,976.95 and 114,643.47 is: 171,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,072.11 : 311,976.95 = 114,643.47 : x
  2. Step 2: Convert to fraction form
    208,072.11/311,976.95 = 114,643.47/x
  3. Step 3: Cross multiply
    208,072.11x = 311,976.95 × 114,643.47
  4. Step 4: Simplify right side
    208,072.11x = 35,766,119,534.80
  5. Step 5: Solve for x
    x = 35,766,119,534.80/208,072.11
  6. Step 6: Final answer
    x = 171,892.91

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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.