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Finding the Fourth Proportional to 139,106, 208,699.32 and 40,610

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Solution

The fourth proportional to 139,106, 208,699.32 and 40,610 is: 60,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,106 : 208,699.32 = 40,610 : x
  2. Step 2: Convert to fraction form
    139,106/208,699.32 = 40,610/x
  3. Step 3: Cross multiply
    139,106x = 208,699.32 × 40,610
  4. Step 4: Simplify right side
    139,106x = 8,475,279,385.20
  5. Step 5: Solve for x
    x = 8,475,279,385.20/139,106
  6. Step 6: Final answer
    x = 60,926.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.