Home / 208,826.40-313,239.60-68,599.20

Finding the Fourth Proportional to 208,826.40, 313,239.60 and 68,599.20

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Solution

The fourth proportional to 208,826.40, 313,239.60 and 68,599.20 is: 102,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,826.40 : 313,239.60 = 68,599.20 : x
  2. Step 2: Convert to fraction form
    208,826.40/313,239.60 = 68,599.20/x
  3. Step 3: Cross multiply
    208,826.40x = 313,239.60 × 68,599.20
  4. Step 4: Simplify right side
    208,826.40x = 21,487,985,968.32
  5. Step 5: Solve for x
    x = 21,487,985,968.32/208,826.40
  6. Step 6: Final answer
    x = 102,898.80

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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.