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Finding the Fourth Proportional to 137,095.70, 205,657.95 and 43,579.70

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Solution

The fourth proportional to 137,095.70, 205,657.95 and 43,579.70 is: 65,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,095.70 : 205,657.95 = 43,579.70 : x
  2. Step 2: Convert to fraction form
    137,095.70/205,657.95 = 43,579.70/x
  3. Step 3: Cross multiply
    137,095.70x = 205,657.95 × 43,579.70
  4. Step 4: Simplify right side
    137,095.70x = 8,962,511,763.62
  5. Step 5: Solve for x
    x = 8,962,511,763.62/137,095.70
  6. Step 6: Final answer
    x = 65,374.13

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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.