Home / 135,977.20-204,038.70-57,099.40

Finding the Fourth Proportional to 135,977.20, 204,038.70 and 57,099.40

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Solution

The fourth proportional to 135,977.20, 204,038.70 and 57,099.40 is: 85,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,977.20 : 204,038.70 = 57,099.40 : x
  2. Step 2: Convert to fraction form
    135,977.20/204,038.70 = 57,099.40/x
  3. Step 3: Cross multiply
    135,977.20x = 204,038.70 × 57,099.40
  4. Step 4: Simplify right side
    135,977.20x = 11,650,487,346.78
  5. Step 5: Solve for x
    x = 11,650,487,346.78/135,977.20
  6. Step 6: Final answer
    x = 85,679.71

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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.