Home / 209,930.40-314,814.24-69,651.36

Finding the Fourth Proportional to 209,930.40, 314,814.24 and 69,651.36

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Solution

The fourth proportional to 209,930.40, 314,814.24 and 69,651.36 is: 104,450.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,930.40 : 314,814.24 = 69,651.36 : x
  2. Step 2: Convert to fraction form
    209,930.40/314,814.24 = 69,651.36/x
  3. Step 3: Cross multiply
    209,930.40x = 314,814.24 × 69,651.36
  4. Step 4: Simplify right side
    209,930.40x = 21,927,239,963.37
  5. Step 5: Solve for x
    x = 21,927,239,963.37/209,930.40
  6. Step 6: Final answer
    x = 104,450.05

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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.