Home / 137,012.58-205,518.60-51,639.39

Finding the Fourth Proportional to 137,012.58, 205,518.60 and 51,639.39

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Solution

The fourth proportional to 137,012.58, 205,518.60 and 51,639.39 is: 77,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,012.58 : 205,518.60 = 51,639.39 : x
  2. Step 2: Convert to fraction form
    137,012.58/205,518.60 = 51,639.39/x
  3. Step 3: Cross multiply
    137,012.58x = 205,518.60 × 51,639.39
  4. Step 4: Simplify right side
    137,012.58x = 10,612,855,137.65
  5. Step 5: Solve for x
    x = 10,612,855,137.65/137,012.58
  6. Step 6: Final answer
    x = 77,458.98

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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.