Home / 155,414.34-214,471.44-87,431.34

Finding the Fourth Proportional to 155,414.34, 214,471.44 and 87,431.34

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Solution

The fourth proportional to 155,414.34, 214,471.44 and 87,431.34 is: 120,655.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,414.34 : 214,471.44 = 87,431.34 : x
  2. Step 2: Convert to fraction form
    155,414.34/214,471.44 = 87,431.34/x
  3. Step 3: Cross multiply
    155,414.34x = 214,471.44 × 87,431.34
  4. Step 4: Simplify right side
    155,414.34x = 18,751,525,390.93
  5. Step 5: Solve for x
    x = 18,751,525,390.93/155,414.34
  6. Step 6: Final answer
    x = 120,655.05

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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.