Home / 209,702.12-314,551.26-85,013.48

Finding the Fourth Proportional to 209,702.12, 314,551.26 and 85,013.48

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Solution

The fourth proportional to 209,702.12, 314,551.26 and 85,013.48 is: 127,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,702.12 : 314,551.26 = 85,013.48 : x
  2. Step 2: Convert to fraction form
    209,702.12/314,551.26 = 85,013.48/x
  3. Step 3: Cross multiply
    209,702.12x = 314,551.26 × 85,013.48
  4. Step 4: Simplify right side
    209,702.12x = 26,741,097,250.98
  5. Step 5: Solve for x
    x = 26,741,097,250.98/209,702.12
  6. Step 6: Final answer
    x = 127,519.44

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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.