Home / 103,266.70-142,499.30-57,938.56

Finding the Fourth Proportional to 103,266.70, 142,499.30 and 57,938.56

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Solution

The fourth proportional to 103,266.70, 142,499.30 and 57,938.56 is: 79,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,266.70 : 142,499.30 = 57,938.56 : x
  2. Step 2: Convert to fraction form
    103,266.70/142,499.30 = 57,938.56/x
  3. Step 3: Cross multiply
    103,266.70x = 142,499.30 × 57,938.56
  4. Step 4: Simplify right side
    103,266.70x = 8,256,204,243.01
  5. Step 5: Solve for x
    x = 8,256,204,243.01/103,266.70
  6. Step 6: Final answer
    x = 79,950.31

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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.