Home / 137,804.42-190,181.13-77,379.08

Finding the Fourth Proportional to 137,804.42, 190,181.13 and 77,379.08

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Solution

The fourth proportional to 137,804.42, 190,181.13 and 77,379.08 is: 106,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,804.42 : 190,181.13 = 77,379.08 : x
  2. Step 2: Convert to fraction form
    137,804.42/190,181.13 = 77,379.08/x
  3. Step 3: Cross multiply
    137,804.42x = 190,181.13 × 77,379.08
  4. Step 4: Simplify right side
    137,804.42x = 14,716,040,872.76
  5. Step 5: Solve for x
    x = 14,716,040,872.76/137,804.42
  6. Step 6: Final answer
    x = 106,789.32

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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.