Home / 135,817.92-187,419.84-75,385.68

Finding the Fourth Proportional to 135,817.92, 187,419.84 and 75,385.68

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Solution

The fourth proportional to 135,817.92, 187,419.84 and 75,385.68 is: 104,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,817.92 : 187,419.84 = 75,385.68 : x
  2. Step 2: Convert to fraction form
    135,817.92/187,419.84 = 75,385.68/x
  3. Step 3: Cross multiply
    135,817.92x = 187,419.84 × 75,385.68
  4. Step 4: Simplify right side
    135,817.92x = 14,128,772,083.89
  5. Step 5: Solve for x
    x = 14,128,772,083.89/135,817.92
  6. Step 6: Final answer
    x = 104,027.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.