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Finding the Fourth Proportional to 139,206.59, 208,809.88 and 34,025.39

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Solution

The fourth proportional to 139,206.59, 208,809.88 and 34,025.39 is: 51,038.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,206.59 : 208,809.88 = 34,025.39 : x
  2. Step 2: Convert to fraction form
    139,206.59/208,809.88 = 34,025.39/x
  3. Step 3: Cross multiply
    139,206.59x = 208,809.88 × 34,025.39
  4. Step 4: Simplify right side
    139,206.59x = 7,104,836,388.68
  5. Step 5: Solve for x
    x = 7,104,836,388.68/139,206.59
  6. Step 6: Final answer
    x = 51,038.08

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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.