Home / 221,765.04-306,034.56-121,163.04

Finding the Fourth Proportional to 221,765.04, 306,034.56 and 121,163.04

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Solution

The fourth proportional to 221,765.04, 306,034.56 and 121,163.04 is: 167,204.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,765.04 : 306,034.56 = 121,163.04 : x
  2. Step 2: Convert to fraction form
    221,765.04/306,034.56 = 121,163.04/x
  3. Step 3: Cross multiply
    221,765.04x = 306,034.56 × 121,163.04
  4. Step 4: Simplify right side
    221,765.04x = 37,080,077,634.66
  5. Step 5: Solve for x
    x = 37,080,077,634.66/221,765.04
  6. Step 6: Final answer
    x = 167,204.34

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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.