Home / 201,961.60-302,902.72-68,849.28

Finding the Fourth Proportional to 201,961.60, 302,902.72 and 68,849.28

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Solution

The fourth proportional to 201,961.60, 302,902.72 and 68,849.28 is: 103,260.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,961.60 : 302,902.72 = 68,849.28 : x
  2. Step 2: Convert to fraction form
    201,961.60/302,902.72 = 68,849.28/x
  3. Step 3: Cross multiply
    201,961.60x = 302,902.72 × 68,849.28
  4. Step 4: Simplify right side
    201,961.60x = 20,854,634,182.04
  5. Step 5: Solve for x
    x = 20,854,634,182.04/201,961.60
  6. Step 6: Final answer
    x = 103,260.39

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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.