Home / 199,825.40-299,592.30-81,435.80

Finding the Fourth Proportional to 199,825.40, 299,592.30 and 81,435.80

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Solution

The fourth proportional to 199,825.40, 299,592.30 and 81,435.80 is: 122,094.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,825.40 : 299,592.30 = 81,435.80 : x
  2. Step 2: Convert to fraction form
    199,825.40/299,592.30 = 81,435.80/x
  3. Step 3: Cross multiply
    199,825.40x = 299,592.30 × 81,435.80
  4. Step 4: Simplify right side
    199,825.40x = 24,397,538,624.34
  5. Step 5: Solve for x
    x = 24,397,538,624.34/199,825.40
  6. Step 6: Final answer
    x = 122,094.28

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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.