Home / 140,049.56-193,271-76,389.64

Finding the Fourth Proportional to 140,049.56, 193,271 and 76,389.64

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Solution

The fourth proportional to 140,049.56, 193,271 and 76,389.64 is: 105,419.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,049.56 : 193,271 = 76,389.64 : x
  2. Step 2: Convert to fraction form
    140,049.56/193,271 = 76,389.64/x
  3. Step 3: Cross multiply
    140,049.56x = 193,271 × 76,389.64
  4. Step 4: Simplify right side
    140,049.56x = 14,763,902,112.44
  5. Step 5: Solve for x
    x = 14,763,902,112.44/140,049.56
  6. Step 6: Final answer
    x = 105,419.13

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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.