Home / 137,922.58-190,321.38-77,488.48

Finding the Fourth Proportional to 137,922.58, 190,321.38 and 77,488.48

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Solution

The fourth proportional to 137,922.58, 190,321.38 and 77,488.48 is: 106,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,922.58 : 190,321.38 = 77,488.48 : x
  2. Step 2: Convert to fraction form
    137,922.58/190,321.38 = 77,488.48/x
  3. Step 3: Cross multiply
    137,922.58x = 190,321.38 × 77,488.48
  4. Step 4: Simplify right side
    137,922.58x = 14,747,714,447.70
  5. Step 5: Solve for x
    x = 14,747,714,447.70/137,922.58
  6. Step 6: Final answer
    x = 106,927.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.