Home / 204,645.02-306,988.86-78,285.02

Finding the Fourth Proportional to 204,645.02, 306,988.86 and 78,285.02

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Solution

The fourth proportional to 204,645.02, 306,988.86 and 78,285.02 is: 117,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,645.02 : 306,988.86 = 78,285.02 : x
  2. Step 2: Convert to fraction form
    204,645.02/306,988.86 = 78,285.02/x
  3. Step 3: Cross multiply
    204,645.02x = 306,988.86 × 78,285.02
  4. Step 4: Simplify right side
    204,645.02x = 24,032,629,044.88
  5. Step 5: Solve for x
    x = 24,032,629,044.88/204,645.02
  6. Step 6: Final answer
    x = 117,435.69

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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.