Home / 209,935.80-314,702.10-69,622.20

Finding the Fourth Proportional to 209,935.80, 314,702.10 and 69,622.20

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Solution

The fourth proportional to 209,935.80, 314,702.10 and 69,622.20 is: 104,366.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,935.80 : 314,702.10 = 69,622.20 : x
  2. Step 2: Convert to fraction form
    209,935.80/314,702.10 = 69,622.20/x
  3. Step 3: Cross multiply
    209,935.80x = 314,702.10 × 69,622.20
  4. Step 4: Simplify right side
    209,935.80x = 21,910,252,546.62
  5. Step 5: Solve for x
    x = 21,910,252,546.62/209,935.80
  6. Step 6: Final answer
    x = 104,366.44

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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.