Home / 140,785.54-194,235.48-80,312.56

Finding the Fourth Proportional to 140,785.54, 194,235.48 and 80,312.56

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Solution

The fourth proportional to 140,785.54, 194,235.48 and 80,312.56 is: 110,803.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,785.54 : 194,235.48 = 80,312.56 : x
  2. Step 2: Convert to fraction form
    140,785.54/194,235.48 = 80,312.56/x
  3. Step 3: Cross multiply
    140,785.54x = 194,235.48 × 80,312.56
  4. Step 4: Simplify right side
    140,785.54x = 15,599,548,641.63
  5. Step 5: Solve for x
    x = 15,599,548,641.63/140,785.54
  6. Step 6: Final answer
    x = 110,803.63

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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.