Home / 151,745.12-209,408.26-83,762.10

Finding the Fourth Proportional to 151,745.12, 209,408.26 and 83,762.10

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Solution

The fourth proportional to 151,745.12, 209,408.26 and 83,762.10 is: 115,591.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,745.12 : 209,408.26 = 83,762.10 : x
  2. Step 2: Convert to fraction form
    151,745.12/209,408.26 = 83,762.10/x
  3. Step 3: Cross multiply
    151,745.12x = 209,408.26 × 83,762.10
  4. Step 4: Simplify right side
    151,745.12x = 17,540,475,614.95
  5. Step 5: Solve for x
    x = 17,540,475,614.95/151,745.12
  6. Step 6: Final answer
    x = 115,591.69

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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.