Home / 209,933.52-314,867.80-76,782.64

Finding the Fourth Proportional to 209,933.52, 314,867.80 and 76,782.64

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Solution

The fourth proportional to 209,933.52, 314,867.80 and 76,782.64 is: 115,162.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,933.52 : 314,867.80 = 76,782.64 : x
  2. Step 2: Convert to fraction form
    209,933.52/314,867.80 = 76,782.64/x
  3. Step 3: Cross multiply
    209,933.52x = 314,867.80 × 76,782.64
  4. Step 4: Simplify right side
    209,933.52x = 24,176,380,934.99
  5. Step 5: Solve for x
    x = 24,176,380,934.99/209,933.52
  6. Step 6: Final answer
    x = 115,162.08

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1.5x scale

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.