Home / 140,534.44-193,935-76,871.68

Finding the Fourth Proportional to 140,534.44, 193,935 and 76,871.68

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Solution

The fourth proportional to 140,534.44, 193,935 and 76,871.68 is: 106,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,534.44 : 193,935 = 76,871.68 : x
  2. Step 2: Convert to fraction form
    140,534.44/193,935 = 76,871.68/x
  3. Step 3: Cross multiply
    140,534.44x = 193,935 × 76,871.68
  4. Step 4: Simplify right side
    140,534.44x = 14,908,109,260.80
  5. Step 5: Solve for x
    x = 14,908,109,260.80/140,534.44
  6. Step 6: Final answer
    x = 106,081.54

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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.