Home / 194,865.60-292,096.80-105,931.20

Finding the Fourth Proportional to 194,865.60, 292,096.80 and 105,931.20

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Solution

The fourth proportional to 194,865.60, 292,096.80 and 105,931.20 is: 158,787.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,865.60 : 292,096.80 = 105,931.20 : x
  2. Step 2: Convert to fraction form
    194,865.60/292,096.80 = 105,931.20/x
  3. Step 3: Cross multiply
    194,865.60x = 292,096.80 × 105,931.20
  4. Step 4: Simplify right side
    194,865.60x = 30,942,164,540.16
  5. Step 5: Solve for x
    x = 30,942,164,540.16/194,865.60
  6. Step 6: Final answer
    x = 158,787.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.