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Finding the Fourth Proportional to 103,288, 154,901.96 and 43,314.82

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Solution

The fourth proportional to 103,288, 154,901.96 and 43,314.82 is: 64,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,288 : 154,901.96 = 43,314.82 : x
  2. Step 2: Convert to fraction form
    103,288/154,901.96 = 43,314.82/x
  3. Step 3: Cross multiply
    103,288x = 154,901.96 × 43,314.82
  4. Step 4: Simplify right side
    103,288x = 6,709,550,515.05
  5. Step 5: Solve for x
    x = 6,709,550,515.05/103,288
  6. Step 6: Final answer
    x = 64,959.63

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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.