Home / 209,956.20-314,934.30-125,975.40

Finding the Fourth Proportional to 209,956.20, 314,934.30 and 125,975.40

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Solution

The fourth proportional to 209,956.20, 314,934.30 and 125,975.40 is: 188,963.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,956.20 : 314,934.30 = 125,975.40 : x
  2. Step 2: Convert to fraction form
    209,956.20/314,934.30 = 125,975.40/x
  3. Step 3: Cross multiply
    209,956.20x = 314,934.30 × 125,975.40
  4. Step 4: Simplify right side
    209,956.20x = 39,673,974,416.22
  5. Step 5: Solve for x
    x = 39,673,974,416.22/209,956.20
  6. Step 6: Final answer
    x = 188,963.10

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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.