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Finding the Fourth Proportional to 139,850.28, 209,841.03 and 69,735.06

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Solution

The fourth proportional to 139,850.28, 209,841.03 and 69,735.06 is: 104,635.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,850.28 : 209,841.03 = 69,735.06 : x
  2. Step 2: Convert to fraction form
    139,850.28/209,841.03 = 69,735.06/x
  3. Step 3: Cross multiply
    139,850.28x = 209,841.03 × 69,735.06
  4. Step 4: Simplify right side
    139,850.28x = 14,633,276,817.51
  5. Step 5: Solve for x
    x = 14,633,276,817.51/139,850.28
  6. Step 6: Final answer
    x = 104,635.31

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1.5x scale

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.