Home / 115,961.40-173,682.90-89,580.60

Finding the Fourth Proportional to 115,961.40, 173,682.90 and 89,580.60

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Solution

The fourth proportional to 115,961.40, 173,682.90 and 89,580.60 is: 134,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,961.40 : 173,682.90 = 89,580.60 : x
  2. Step 2: Convert to fraction form
    115,961.40/173,682.90 = 89,580.60/x
  3. Step 3: Cross multiply
    115,961.40x = 173,682.90 × 89,580.60
  4. Step 4: Simplify right side
    115,961.40x = 15,558,618,391.74
  5. Step 5: Solve for x
    x = 15,558,618,391.74/115,961.40
  6. Step 6: Final answer
    x = 134,170.67

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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.