Home / 140,893.05-194,434.76-76,364.34

Finding the Fourth Proportional to 140,893.05, 194,434.76 and 76,364.34

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Solution

The fourth proportional to 140,893.05, 194,434.76 and 76,364.34 is: 105,384.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,893.05 : 194,434.76 = 76,364.34 : x
  2. Step 2: Convert to fraction form
    140,893.05/194,434.76 = 76,364.34/x
  3. Step 3: Cross multiply
    140,893.05x = 194,434.76 × 76,364.34
  4. Step 4: Simplify right side
    140,893.05x = 14,847,882,120.46
  5. Step 5: Solve for x
    x = 14,847,882,120.46/140,893.05
  6. Step 6: Final answer
    x = 105,384.06

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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.