Home / 123,766.75-170,783.91-69,311.32

Finding the Fourth Proportional to 123,766.75, 170,783.91 and 69,311.32

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Solution

The fourth proportional to 123,766.75, 170,783.91 and 69,311.32 is: 95,641.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,766.75 : 170,783.91 = 69,311.32 : x
  2. Step 2: Convert to fraction form
    123,766.75/170,783.91 = 69,311.32/x
  3. Step 3: Cross multiply
    123,766.75x = 170,783.91 × 69,311.32
  4. Step 4: Simplify right side
    123,766.75x = 11,837,258,236.86
  5. Step 5: Solve for x
    x = 11,837,258,236.86/123,766.75
  6. Step 6: Final answer
    x = 95,641.67

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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.