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Finding the Fourth Proportional to 75,346.14, 113,020.90 and 19,186.04

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Solution

The fourth proportional to 75,346.14, 113,020.90 and 19,186.04 is: 28,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,346.14 : 113,020.90 = 19,186.04 : x
  2. Step 2: Convert to fraction form
    75,346.14/113,020.90 = 19,186.04/x
  3. Step 3: Cross multiply
    75,346.14x = 113,020.90 × 19,186.04
  4. Step 4: Simplify right side
    75,346.14x = 2,168,423,508.24
  5. Step 5: Solve for x
    x = 2,168,423,508.24/75,346.14
  6. Step 6: Final answer
    x = 28,779.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.