Home / 209,935.95-314,894.36-67,787.79

Finding the Fourth Proportional to 209,935.95, 314,894.36 and 67,787.79

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Solution

The fourth proportional to 209,935.95, 314,894.36 and 67,787.79 is: 101,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,935.95 : 314,894.36 = 67,787.79 : x
  2. Step 2: Convert to fraction form
    209,935.95/314,894.36 = 67,787.79/x
  3. Step 3: Cross multiply
    209,935.95x = 314,894.36 × 67,787.79
  4. Step 4: Simplify right side
    209,935.95x = 21,345,992,747.86
  5. Step 5: Solve for x
    x = 21,345,992,747.86/209,935.95
  6. Step 6: Final answer
    x = 101,678.60

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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.