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Finding the Fourth Proportional to 103,154.11, 154,726.00 and 28,273.05

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Solution

The fourth proportional to 103,154.11, 154,726.00 and 28,273.05 is: 42,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,154.11 : 154,726.00 = 28,273.05 : x
  2. Step 2: Convert to fraction form
    103,154.11/154,726.00 = 28,273.05/x
  3. Step 3: Cross multiply
    103,154.11x = 154,726.00 × 28,273.05
  4. Step 4: Simplify right side
    103,154.11x = 4,374,575,863.62
  5. Step 5: Solve for x
    x = 4,374,575,863.62/103,154.11
  6. Step 6: Final answer
    x = 42,408.16

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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.