Home / 140,865.18-194,393.57-76,336.20

Finding the Fourth Proportional to 140,865.18, 194,393.57 and 76,336.20

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Solution

The fourth proportional to 140,865.18, 194,393.57 and 76,336.20 is: 105,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,865.18 : 194,393.57 = 76,336.20 : x
  2. Step 2: Convert to fraction form
    140,865.18/194,393.57 = 76,336.20/x
  3. Step 3: Cross multiply
    140,865.18x = 194,393.57 × 76,336.20
  4. Step 4: Simplify right side
    140,865.18x = 14,839,266,056.55
  5. Step 5: Solve for x
    x = 14,839,266,056.55/140,865.18
  6. Step 6: Final answer
    x = 105,343.75

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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.