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Finding the Fourth Proportional to 134,489.88, 201,761.37 and 39,721.68

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Solution

The fourth proportional to 134,489.88, 201,761.37 and 39,721.68 is: 59,590.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,489.88 : 201,761.37 = 39,721.68 : x
  2. Step 2: Convert to fraction form
    134,489.88/201,761.37 = 39,721.68/x
  3. Step 3: Cross multiply
    134,489.88x = 201,761.37 × 39,721.68
  4. Step 4: Simplify right side
    134,489.88x = 8,014,300,575.50
  5. Step 5: Solve for x
    x = 8,014,300,575.50/134,489.88
  6. Step 6: Final answer
    x = 59,590.36

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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.