Home / 204,486.19-306,681.60-78,080.02

Finding the Fourth Proportional to 204,486.19, 306,681.60 and 78,080.02

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Solution

The fourth proportional to 204,486.19, 306,681.60 and 78,080.02 is: 117,101.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,486.19 : 306,681.60 = 78,080.02 : x
  2. Step 2: Convert to fraction form
    204,486.19/306,681.60 = 78,080.02/x
  3. Step 3: Cross multiply
    204,486.19x = 306,681.60 × 78,080.02
  4. Step 4: Simplify right side
    204,486.19x = 23,945,705,461.63
  5. Step 5: Solve for x
    x = 23,945,705,461.63/204,486.19
  6. Step 6: Final answer
    x = 117,101.82

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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.