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Finding the Fourth Proportional to 102,953.98, 154,496.58 and 43,789.57

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Solution

The fourth proportional to 102,953.98, 154,496.58 and 43,789.57 is: 65,712.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,953.98 : 154,496.58 = 43,789.57 : x
  2. Step 2: Convert to fraction form
    102,953.98/154,496.58 = 43,789.57/x
  3. Step 3: Cross multiply
    102,953.98x = 154,496.58 × 43,789.57
  4. Step 4: Simplify right side
    102,953.98x = 6,765,338,804.67
  5. Step 5: Solve for x
    x = 6,765,338,804.67/102,953.98
  6. Step 6: Final answer
    x = 65,712.26

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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.