Home / 140,858.88-194,385.48-77,195.32

Finding the Fourth Proportional to 140,858.88, 194,385.48 and 77,195.32

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Solution

The fourth proportional to 140,858.88, 194,385.48 and 77,195.32 is: 106,529.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,858.88 : 194,385.48 = 77,195.32 : x
  2. Step 2: Convert to fraction form
    140,858.88/194,385.48 = 77,195.32/x
  3. Step 3: Cross multiply
    140,858.88x = 194,385.48 × 77,195.32
  4. Step 4: Simplify right side
    140,858.88x = 15,005,649,331.95
  5. Step 5: Solve for x
    x = 15,005,649,331.95/140,858.88
  6. Step 6: Final answer
    x = 106,529.67

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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.