Home / 209,934.95-314,892.86-67,786.79

Finding the Fourth Proportional to 209,934.95, 314,892.86 and 67,786.79

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Solution

The fourth proportional to 209,934.95, 314,892.86 and 67,786.79 is: 101,677.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,934.95 : 314,892.86 = 67,786.79 : x
  2. Step 2: Convert to fraction form
    209,934.95/314,892.86 = 67,786.79/x
  3. Step 3: Cross multiply
    209,934.95x = 314,892.86 × 67,786.79
  4. Step 4: Simplify right side
    209,934.95x = 21,345,576,173.32
  5. Step 5: Solve for x
    x = 21,345,576,173.32/209,934.95
  6. Step 6: Final answer
    x = 101,677.10

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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.