Home / 140,638.85-194,080.24-76,106.71

Finding the Fourth Proportional to 140,638.85, 194,080.24 and 76,106.71

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Solution

The fourth proportional to 140,638.85, 194,080.24 and 76,106.71 is: 105,026.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,638.85 : 194,080.24 = 76,106.71 : x
  2. Step 2: Convert to fraction form
    140,638.85/194,080.24 = 76,106.71/x
  3. Step 3: Cross multiply
    140,638.85x = 194,080.24 × 76,106.71
  4. Step 4: Simplify right side
    140,638.85x = 14,770,807,574.39
  5. Step 5: Solve for x
    x = 14,770,807,574.39/140,638.85
  6. Step 6: Final answer
    x = 105,026.51

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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.