Home / 105,885.28-146,121.90-57,487.26

Finding the Fourth Proportional to 105,885.28, 146,121.90 and 57,487.26

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Solution

The fourth proportional to 105,885.28, 146,121.90 and 57,487.26 is: 79,332.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,885.28 : 146,121.90 = 57,487.26 : x
  2. Step 2: Convert to fraction form
    105,885.28/146,121.90 = 57,487.26/x
  3. Step 3: Cross multiply
    105,885.28x = 146,121.90 × 57,487.26
  4. Step 4: Simplify right side
    105,885.28x = 8,400,147,167.44
  5. Step 5: Solve for x
    x = 8,400,147,167.44/105,885.28
  6. Step 6: Final answer
    x = 79,332.53

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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.