Home / 209,913.33-314,919.20-83,561.30

Finding the Fourth Proportional to 209,913.33, 314,919.20 and 83,561.30

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Solution

The fourth proportional to 209,913.33, 314,919.20 and 83,561.30 is: 125,361.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,913.33 : 314,919.20 = 83,561.30 : x
  2. Step 2: Convert to fraction form
    209,913.33/314,919.20 = 83,561.30/x
  3. Step 3: Cross multiply
    209,913.33x = 314,919.20 × 83,561.30
  4. Step 4: Simplify right side
    209,913.33x = 26,315,056,381.27
  5. Step 5: Solve for x
    x = 26,315,056,381.27/209,913.33
  6. Step 6: Final answer
    x = 125,361.53

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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.