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Finding the Fourth Proportional to 139,802.24, 209,710.37 and 39,977.14

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Solution

The fourth proportional to 139,802.24, 209,710.37 and 39,977.14 is: 59,967.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,802.24 : 209,710.37 = 39,977.14 : x
  2. Step 2: Convert to fraction form
    139,802.24/209,710.37 = 39,977.14/x
  3. Step 3: Cross multiply
    139,802.24x = 209,710.37 × 39,977.14
  4. Step 4: Simplify right side
    139,802.24x = 8,383,620,820.94
  5. Step 5: Solve for x
    x = 8,383,620,820.94/139,802.24
  6. Step 6: Final answer
    x = 59,967.71

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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.