Home / 140,765.42-194,256.34-77,104.28

Finding the Fourth Proportional to 140,765.42, 194,256.34 and 77,104.28

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Solution

The fourth proportional to 140,765.42, 194,256.34 and 77,104.28 is: 106,403.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,765.42 : 194,256.34 = 77,104.28 : x
  2. Step 2: Convert to fraction form
    140,765.42/194,256.34 = 77,104.28/x
  3. Step 3: Cross multiply
    140,765.42x = 194,256.34 × 77,104.28
  4. Step 4: Simplify right side
    140,765.42x = 14,977,995,231.14
  5. Step 5: Solve for x
    x = 14,977,995,231.14/140,765.42
  6. Step 6: Final answer
    x = 106,403.94

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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.