Home / 137,804.92-190,181.82-77,379.58

Finding the Fourth Proportional to 137,804.92, 190,181.82 and 77,379.58

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Solution

The fourth proportional to 137,804.92, 190,181.82 and 77,379.58 is: 106,790.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,804.92 : 190,181.82 = 77,379.58 : x
  2. Step 2: Convert to fraction form
    137,804.92/190,181.82 = 77,379.58/x
  3. Step 3: Cross multiply
    137,804.92x = 190,181.82 × 77,379.58
  4. Step 4: Simplify right side
    137,804.92x = 14,716,189,355.24
  5. Step 5: Solve for x
    x = 14,716,189,355.24/137,804.92
  6. Step 6: Final answer
    x = 106,790.01

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1.5x scale

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.