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Finding the Fourth Proportional to 135,394.30, 186,851.04 and 74,971.63

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Solution

The fourth proportional to 135,394.30, 186,851.04 and 74,971.63 is: 103,464.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,394.30 : 186,851.04 = 74,971.63 : x
  2. Step 2: Convert to fraction form
    135,394.30/186,851.04 = 74,971.63/x
  3. Step 3: Cross multiply
    135,394.30x = 186,851.04 × 74,971.63
  4. Step 4: Simplify right side
    135,394.30x = 14,008,527,036.00
  5. Step 5: Solve for x
    x = 14,008,527,036.00/135,394.30
  6. Step 6: Final answer
    x = 103,464.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.