Home / 151,745.12-209,408.23-83,762.07

Finding the Fourth Proportional to 151,745.12, 209,408.23 and 83,762.07

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Solution

The fourth proportional to 151,745.12, 209,408.23 and 83,762.07 is: 115,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,745.12 : 209,408.23 = 83,762.07 : x
  2. Step 2: Convert to fraction form
    151,745.12/209,408.23 = 83,762.07/x
  3. Step 3: Cross multiply
    151,745.12x = 209,408.23 × 83,762.07
  4. Step 4: Simplify right side
    151,745.12x = 17,540,466,819.84
  5. Step 5: Solve for x
    x = 17,540,466,819.84/151,745.12
  6. Step 6: Final answer
    x = 115,591.64

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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.