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Finding the Fourth Proportional to 103,788, 143,227.44 and 59,084.64

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Solution

The fourth proportional to 103,788, 143,227.44 and 59,084.64 is: 81,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,788 : 143,227.44 = 59,084.64 : x
  2. Step 2: Convert to fraction form
    103,788/143,227.44 = 59,084.64/x
  3. Step 3: Cross multiply
    103,788x = 143,227.44 × 59,084.64
  4. Step 4: Simplify right side
    103,788x = 8,462,541,730.52
  5. Step 5: Solve for x
    x = 8,462,541,730.52/103,788
  6. Step 6: Final answer
    x = 81,536.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.