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Finding the Fourth Proportional to 139,352.40, 208,964.70 and 44,564.13

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Solution

The fourth proportional to 139,352.40, 208,964.70 and 44,564.13 is: 66,825.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,352.40 : 208,964.70 = 44,564.13 : x
  2. Step 2: Convert to fraction form
    139,352.40/208,964.70 = 44,564.13/x
  3. Step 3: Cross multiply
    139,352.40x = 208,964.70 × 44,564.13
  4. Step 4: Simplify right side
    139,352.40x = 9,312,330,056.21
  5. Step 5: Solve for x
    x = 9,312,330,056.21/139,352.40
  6. Step 6: Final answer
    x = 66,825.76

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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.