Home / 140,928.26-194,493.15-77,278.32

Finding the Fourth Proportional to 140,928.26, 194,493.15 and 77,278.32

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Solution

The fourth proportional to 140,928.26, 194,493.15 and 77,278.32 is: 106,650.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,928.26 : 194,493.15 = 77,278.32 : x
  2. Step 2: Convert to fraction form
    140,928.26/194,493.15 = 77,278.32/x
  3. Step 3: Cross multiply
    140,928.26x = 194,493.15 × 77,278.32
  4. Step 4: Simplify right side
    140,928.26x = 15,030,103,883.51
  5. Step 5: Solve for x
    x = 15,030,103,883.51/140,928.26
  6. Step 6: Final answer
    x = 106,650.75

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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.