Home / 222,741.20-307,377.24-122,139.20

Finding the Fourth Proportional to 222,741.20, 307,377.24 and 122,139.20

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Solution

The fourth proportional to 222,741.20, 307,377.24 and 122,139.20 is: 168,549.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,741.20 : 307,377.24 = 122,139.20 : x
  2. Step 2: Convert to fraction form
    222,741.20/307,377.24 = 122,139.20/x
  3. Step 3: Cross multiply
    222,741.20x = 307,377.24 × 122,139.20
  4. Step 4: Simplify right side
    222,741.20x = 37,542,810,191.81
  5. Step 5: Solve for x
    x = 37,542,810,191.81/222,741.20
  6. Step 6: Final answer
    x = 168,549.02

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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.