Home / 212,905.51-293,799.72-122,197.64

Finding the Fourth Proportional to 212,905.51, 293,799.72 and 122,197.64

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Solution

The fourth proportional to 212,905.51, 293,799.72 and 122,197.64 is: 168,627.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,905.51 : 293,799.72 = 122,197.64 : x
  2. Step 2: Convert to fraction form
    212,905.51/293,799.72 = 122,197.64/x
  3. Step 3: Cross multiply
    212,905.51x = 293,799.72 × 122,197.64
  4. Step 4: Simplify right side
    212,905.51x = 35,901,630,947.66
  5. Step 5: Solve for x
    x = 35,901,630,947.66/212,905.51
  6. Step 6: Final answer
    x = 168,627.06

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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.