Home / 204,485.19-306,680.10-78,079.02

Finding the Fourth Proportional to 204,485.19, 306,680.10 and 78,079.02

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Solution

The fourth proportional to 204,485.19, 306,680.10 and 78,079.02 is: 117,100.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,485.19 : 306,680.10 = 78,079.02 : x
  2. Step 2: Convert to fraction form
    204,485.19/306,680.10 = 78,079.02/x
  3. Step 3: Cross multiply
    204,485.19x = 306,680.10 × 78,079.02
  4. Step 4: Simplify right side
    204,485.19x = 23,945,281,661.50
  5. Step 5: Solve for x
    x = 23,945,281,661.50/204,485.19
  6. Step 6: Final answer
    x = 117,100.32

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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.