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Finding the Fourth Proportional to 103,266.68, 154,882.12 and 28,368.98

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Solution

The fourth proportional to 103,266.68, 154,882.12 and 28,368.98 is: 42,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,266.68 : 154,882.12 = 28,368.98 : x
  2. Step 2: Convert to fraction form
    103,266.68/154,882.12 = 28,368.98/x
  3. Step 3: Cross multiply
    103,266.68x = 154,882.12 × 28,368.98
  4. Step 4: Simplify right side
    103,266.68x = 4,393,847,764.64
  5. Step 5: Solve for x
    x = 4,393,847,764.64/103,266.68
  6. Step 6: Final answer
    x = 42,548.55

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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.