Home / 212,353.82-293,039.60-121,646.64

Finding the Fourth Proportional to 212,353.82, 293,039.60 and 121,646.64

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Solution

The fourth proportional to 212,353.82, 293,039.60 and 121,646.64 is: 167,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,353.82 : 293,039.60 = 121,646.64 : x
  2. Step 2: Convert to fraction form
    212,353.82/293,039.60 = 121,646.64/x
  3. Step 3: Cross multiply
    212,353.82x = 293,039.60 × 121,646.64
  4. Step 4: Simplify right side
    212,353.82x = 35,647,282,118.71
  5. Step 5: Solve for x
    x = 35,647,282,118.71/212,353.82
  6. Step 6: Final answer
    x = 167,867.40

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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.