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Finding the Fourth Proportional to 188,989.67, 283,386.08 and 70,563.62

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Solution

The fourth proportional to 188,989.67, 283,386.08 and 70,563.62 is: 105,808.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,989.67 : 283,386.08 = 70,563.62 : x
  2. Step 2: Convert to fraction form
    188,989.67/283,386.08 = 70,563.62/x
  3. Step 3: Cross multiply
    188,989.67x = 283,386.08 × 70,563.62
  4. Step 4: Simplify right side
    188,989.67x = 19,996,745,892.66
  5. Step 5: Solve for x
    x = 19,996,745,892.66/188,989.67
  6. Step 6: Final answer
    x = 105,808.67

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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.