Home / 140,772.48-194,266.08-77,112.56

Finding the Fourth Proportional to 140,772.48, 194,266.08 and 77,112.56

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Solution

The fourth proportional to 140,772.48, 194,266.08 and 77,112.56 is: 106,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,772.48 : 194,266.08 = 77,112.56 : x
  2. Step 2: Convert to fraction form
    140,772.48/194,266.08 = 77,112.56/x
  3. Step 3: Cross multiply
    140,772.48x = 194,266.08 × 77,112.56
  4. Step 4: Simplify right side
    140,772.48x = 14,980,354,749.96
  5. Step 5: Solve for x
    x = 14,980,354,749.96/140,772.48
  6. Step 6: Final answer
    x = 106,415.36

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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.