Home / 222,576.48-307,145.52-121,972.32

Finding the Fourth Proportional to 222,576.48, 307,145.52 and 121,972.32

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Solution

The fourth proportional to 222,576.48, 307,145.52 and 121,972.32 is: 168,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,576.48 : 307,145.52 = 121,972.32 : x
  2. Step 2: Convert to fraction form
    222,576.48/307,145.52 = 121,972.32/x
  3. Step 3: Cross multiply
    222,576.48x = 307,145.52 × 121,972.32
  4. Step 4: Simplify right side
    222,576.48x = 37,463,251,652.01
  5. Step 5: Solve for x
    x = 37,463,251,652.01/222,576.48
  6. Step 6: Final answer
    x = 168,316.31

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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.