Home / 209,299.14-313,959.60-69,068.70

Finding the Fourth Proportional to 209,299.14, 313,959.60 and 69,068.70

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Solution

The fourth proportional to 209,299.14, 313,959.60 and 69,068.70 is: 103,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,299.14 : 313,959.60 = 69,068.70 : x
  2. Step 2: Convert to fraction form
    209,299.14/313,959.60 = 69,068.70/x
  3. Step 3: Cross multiply
    209,299.14x = 313,959.60 × 69,068.70
  4. Step 4: Simplify right side
    209,299.14x = 21,684,781,424.52
  5. Step 5: Solve for x
    x = 21,684,781,424.52/209,299.14
  6. Step 6: Final answer
    x = 103,606.64

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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.