Home / 148,408.08-204,804.90-87,150.21

Finding the Fourth Proportional to 148,408.08, 204,804.90 and 87,150.21

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Solution

The fourth proportional to 148,408.08, 204,804.90 and 87,150.21 is: 120,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,408.08 : 204,804.90 = 87,150.21 : x
  2. Step 2: Convert to fraction form
    148,408.08/204,804.90 = 87,150.21/x
  3. Step 3: Cross multiply
    148,408.08x = 204,804.90 × 87,150.21
  4. Step 4: Simplify right side
    148,408.08x = 17,848,790,044.03
  5. Step 5: Solve for x
    x = 17,848,790,044.03/148,408.08
  6. Step 6: Final answer
    x = 120,268.32

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1.5x scale

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.