Home / 205,734.53-308,539.02-72,583.70

Finding the Fourth Proportional to 205,734.53, 308,539.02 and 72,583.70

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Solution

The fourth proportional to 205,734.53, 308,539.02 and 72,583.70 is: 108,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,734.53 : 308,539.02 = 72,583.70 : x
  2. Step 2: Convert to fraction form
    205,734.53/308,539.02 = 72,583.70/x
  3. Step 3: Cross multiply
    205,734.53x = 308,539.02 × 72,583.70
  4. Step 4: Simplify right side
    205,734.53x = 22,394,902,395.47
  5. Step 5: Solve for x
    x = 22,394,902,395.47/205,734.53
  6. Step 6: Final answer
    x = 108,853.40

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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.