Home / 209,915.12-314,879.16-60,168.80

Finding the Fourth Proportional to 209,915.12, 314,879.16 and 60,168.80

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Solution

The fourth proportional to 209,915.12, 314,879.16 and 60,168.80 is: 90,255.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,915.12 : 314,879.16 = 60,168.80 : x
  2. Step 2: Convert to fraction form
    209,915.12/314,879.16 = 60,168.80/x
  3. Step 3: Cross multiply
    209,915.12x = 314,879.16 × 60,168.80
  4. Step 4: Simplify right side
    209,915.12x = 18,945,901,202.21
  5. Step 5: Solve for x
    x = 18,945,901,202.21/209,915.12
  6. Step 6: Final answer
    x = 90,255.06

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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.