Home / 212,996.40-319,460.68-70,829.84

Finding the Fourth Proportional to 212,996.40, 319,460.68 and 70,829.84

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Solution

The fourth proportional to 212,996.40, 319,460.68 and 70,829.84 is: 106,233.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,996.40 : 319,460.68 = 70,829.84 : x
  2. Step 2: Convert to fraction form
    212,996.40/319,460.68 = 70,829.84/x
  3. Step 3: Cross multiply
    212,996.40x = 319,460.68 × 70,829.84
  4. Step 4: Simplify right side
    212,996.40x = 22,627,348,850.69
  5. Step 5: Solve for x
    x = 22,627,348,850.69/212,996.40
  6. Step 6: Final answer
    x = 106,233.48

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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.