Home / 140,749.44-194,229-77,087.76

Finding the Fourth Proportional to 140,749.44, 194,229 and 77,087.76

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Solution

The fourth proportional to 140,749.44, 194,229 and 77,087.76 is: 106,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,749.44 : 194,229 = 77,087.76 : x
  2. Step 2: Convert to fraction form
    140,749.44/194,229 = 77,087.76/x
  3. Step 3: Cross multiply
    140,749.44x = 194,229 × 77,087.76
  4. Step 4: Simplify right side
    140,749.44x = 14,972,678,537.04
  5. Step 5: Solve for x
    x = 14,972,678,537.04/140,749.44
  6. Step 6: Final answer
    x = 106,378.25

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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.