Home / 208,081.68-311,935.14-74,868.28

Finding the Fourth Proportional to 208,081.68, 311,935.14 and 74,868.28

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Solution

The fourth proportional to 208,081.68, 311,935.14 and 74,868.28 is: 112,235.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,081.68 : 311,935.14 = 74,868.28 : x
  2. Step 2: Convert to fraction form
    208,081.68/311,935.14 = 74,868.28/x
  3. Step 3: Cross multiply
    208,081.68x = 311,935.14 × 74,868.28
  4. Step 4: Simplify right side
    208,081.68x = 23,354,047,403.36
  5. Step 5: Solve for x
    x = 23,354,047,403.36/208,081.68
  6. Step 6: Final answer
    x = 112,235.00

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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.