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Finding the Fourth Proportional to 133,357.76, 200,036.64 and 39,860.48

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Solution

The fourth proportional to 133,357.76, 200,036.64 and 39,860.48 is: 59,790.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,357.76 : 200,036.64 = 39,860.48 : x
  2. Step 2: Convert to fraction form
    133,357.76/200,036.64 = 39,860.48/x
  3. Step 3: Cross multiply
    133,357.76x = 200,036.64 × 39,860.48
  4. Step 4: Simplify right side
    133,357.76x = 7,973,556,487.99
  5. Step 5: Solve for x
    x = 7,973,556,487.99/133,357.76
  6. Step 6: Final answer
    x = 59,790.72

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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.