Home / 140,668.21-194,122.46-77,010.10

Finding the Fourth Proportional to 140,668.21, 194,122.46 and 77,010.10

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Solution

The fourth proportional to 140,668.21, 194,122.46 and 77,010.10 is: 106,274.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,668.21 : 194,122.46 = 77,010.10 : x
  2. Step 2: Convert to fraction form
    140,668.21/194,122.46 = 77,010.10/x
  3. Step 3: Cross multiply
    140,668.21x = 194,122.46 × 77,010.10
  4. Step 4: Simplify right side
    140,668.21x = 14,949,390,056.85
  5. Step 5: Solve for x
    x = 14,949,390,056.85/140,668.21
  6. Step 6: Final answer
    x = 106,274.12

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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.