Home / 105,889.28-146,127.65-57,491.37

Finding the Fourth Proportional to 105,889.28, 146,127.65 and 57,491.37

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Solution

The fourth proportional to 105,889.28, 146,127.65 and 57,491.37 is: 79,338.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,889.28 : 146,127.65 = 57,491.37 : x
  2. Step 2: Convert to fraction form
    105,889.28/146,127.65 = 57,491.37/x
  3. Step 3: Cross multiply
    105,889.28x = 146,127.65 × 57,491.37
  4. Step 4: Simplify right side
    105,889.28x = 8,401,078,505.92
  5. Step 5: Solve for x
    x = 8,401,078,505.92/105,889.28
  6. Step 6: Final answer
    x = 79,338.33

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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.