Home / 209,934.52-314,869.30-76,783.64

Finding the Fourth Proportional to 209,934.52, 314,869.30 and 76,783.64

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Solution

The fourth proportional to 209,934.52, 314,869.30 and 76,783.64 is: 115,163.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,934.52 : 314,869.30 = 76,783.64 : x
  2. Step 2: Convert to fraction form
    209,934.52/314,869.30 = 76,783.64/x
  3. Step 3: Cross multiply
    209,934.52x = 314,869.30 × 76,783.64
  4. Step 4: Simplify right side
    209,934.52x = 24,176,810,978.25
  5. Step 5: Solve for x
    x = 24,176,810,978.25/209,934.52
  6. Step 6: Final answer
    x = 115,163.58

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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.