Home / 212,963.45-319,173.83-113,171.45

Finding the Fourth Proportional to 212,963.45, 319,173.83 and 113,171.45

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Solution

The fourth proportional to 212,963.45, 319,173.83 and 113,171.45 is: 169,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,963.45 : 319,173.83 = 113,171.45 : x
  2. Step 2: Convert to fraction form
    212,963.45/319,173.83 = 113,171.45/x
  3. Step 3: Cross multiply
    212,963.45x = 319,173.83 × 113,171.45
  4. Step 4: Simplify right side
    212,963.45x = 36,121,364,577.30
  5. Step 5: Solve for x
    x = 36,121,364,577.30/212,963.45
  6. Step 6: Final answer
    x = 169,612.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.