Home / 209,889.42-314,880.90-76,766.73

Finding the Fourth Proportional to 209,889.42, 314,880.90 and 76,766.73

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Solution

The fourth proportional to 209,889.42, 314,880.90 and 76,766.73 is: 115,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,889.42 : 314,880.90 = 76,766.73 : x
  2. Step 2: Convert to fraction form
    209,889.42/314,880.90 = 76,766.73/x
  3. Step 3: Cross multiply
    209,889.42x = 314,880.90 × 76,766.73
  4. Step 4: Simplify right side
    209,889.42x = 24,172,377,032.46
  5. Step 5: Solve for x
    x = 24,172,377,032.46/209,889.42
  6. Step 6: Final answer
    x = 115,167.20

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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.