Home / 193,289.40-289,934.10-81,096.30

Finding the Fourth Proportional to 193,289.40, 289,934.10 and 81,096.30

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Solution

The fourth proportional to 193,289.40, 289,934.10 and 81,096.30 is: 121,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,289.40 : 289,934.10 = 81,096.30 : x
  2. Step 2: Convert to fraction form
    193,289.40/289,934.10 = 81,096.30/x
  3. Step 3: Cross multiply
    193,289.40x = 289,934.10 × 81,096.30
  4. Step 4: Simplify right side
    193,289.40x = 23,512,582,753.83
  5. Step 5: Solve for x
    x = 23,512,582,753.83/193,289.40
  6. Step 6: Final answer
    x = 121,644.45

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1.5x scale

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.