Home / 212,962.28-319,405.94-77,998.46

Finding the Fourth Proportional to 212,962.28, 319,405.94 and 77,998.46

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Solution

The fourth proportional to 212,962.28, 319,405.94 and 77,998.46 is: 116,983.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,962.28 : 319,405.94 = 77,998.46 : x
  2. Step 2: Convert to fraction form
    212,962.28/319,405.94 = 77,998.46/x
  3. Step 3: Cross multiply
    212,962.28x = 319,405.94 × 77,998.46
  4. Step 4: Simplify right side
    212,962.28x = 24,913,171,434.85
  5. Step 5: Solve for x
    x = 24,913,171,434.85/212,962.28
  6. Step 6: Final answer
    x = 116,983.96

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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.