Home / 140,765.42-194,256.33-77,104.28

Finding the Fourth Proportional to 140,765.42, 194,256.33 and 77,104.28

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Solution

The fourth proportional to 140,765.42, 194,256.33 and 77,104.28 is: 106,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,765.42 : 194,256.33 = 77,104.28 : x
  2. Step 2: Convert to fraction form
    140,765.42/194,256.33 = 77,104.28/x
  3. Step 3: Cross multiply
    140,765.42x = 194,256.33 × 77,104.28
  4. Step 4: Simplify right side
    140,765.42x = 14,977,994,460.09
  5. Step 5: Solve for x
    x = 14,977,994,460.09/140,765.42
  6. Step 6: Final answer
    x = 106,403.93

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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.