Home / 194,172.20-291,243.90-81,823.40

Finding the Fourth Proportional to 194,172.20, 291,243.90 and 81,823.40

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Solution

The fourth proportional to 194,172.20, 291,243.90 and 81,823.40 is: 122,729.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,172.20 : 291,243.90 = 81,823.40 : x
  2. Step 2: Convert to fraction form
    194,172.20/291,243.90 = 81,823.40/x
  3. Step 3: Cross multiply
    194,172.20x = 291,243.90 × 81,823.40
  4. Step 4: Simplify right side
    194,172.20x = 23,830,566,127.26
  5. Step 5: Solve for x
    x = 23,830,566,127.26/194,172.20
  6. Step 6: Final answer
    x = 122,729.03

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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.