Home / 204,047.20-305,852.10-77,638.60

Finding the Fourth Proportional to 204,047.20, 305,852.10 and 77,638.60

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Solution

The fourth proportional to 204,047.20, 305,852.10 and 77,638.60 is: 116,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,047.20 : 305,852.10 = 77,638.60 : x
  2. Step 2: Convert to fraction form
    204,047.20/305,852.10 = 77,638.60/x
  3. Step 3: Cross multiply
    204,047.20x = 305,852.10 × 77,638.60
  4. Step 4: Simplify right side
    204,047.20x = 23,745,928,851.06
  5. Step 5: Solve for x
    x = 23,745,928,851.06/204,047.20
  6. Step 6: Final answer
    x = 116,374.69

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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.