Home / 140,427.16-193,793.70-76,768.36

Finding the Fourth Proportional to 140,427.16, 193,793.70 and 76,768.36

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Solution

The fourth proportional to 140,427.16, 193,793.70 and 76,768.36 is: 105,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,427.16 : 193,793.70 = 76,768.36 : x
  2. Step 2: Convert to fraction form
    140,427.16/193,793.70 = 76,768.36/x
  3. Step 3: Cross multiply
    140,427.16x = 193,793.70 × 76,768.36
  4. Step 4: Simplify right side
    140,427.16x = 14,877,224,527.33
  5. Step 5: Solve for x
    x = 14,877,224,527.33/140,427.16
  6. Step 6: Final answer
    x = 105,942.64

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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.