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Finding the Fourth Proportional to 201,071.60, 301,650.80 and 67,948.91

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Solution

The fourth proportional to 201,071.60, 301,650.80 and 67,948.91 is: 101,938.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,071.60 : 301,650.80 = 67,948.91 : x
  2. Step 2: Convert to fraction form
    201,071.60/301,650.80 = 67,948.91/x
  3. Step 3: Cross multiply
    201,071.60x = 301,650.80 × 67,948.91
  4. Step 4: Simplify right side
    201,071.60x = 20,496,842,343.82
  5. Step 5: Solve for x
    x = 20,496,842,343.82/201,071.60
  6. Step 6: Final answer
    x = 101,938.03

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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.