Home / 221,794.20-306,075.99-121,192.20

Finding the Fourth Proportional to 221,794.20, 306,075.99 and 121,192.20

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Solution

The fourth proportional to 221,794.20, 306,075.99 and 121,192.20 is: 167,245.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,794.20 : 306,075.99 = 121,192.20 : x
  2. Step 2: Convert to fraction form
    221,794.20/306,075.99 = 121,192.20/x
  3. Step 3: Cross multiply
    221,794.20x = 306,075.99 × 121,192.20
  4. Step 4: Simplify right side
    221,794.20x = 37,094,022,595.28
  5. Step 5: Solve for x
    x = 37,094,022,595.28/221,794.20
  6. Step 6: Final answer
    x = 167,245.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.