Home / 105,584.42-145,651.26-65,285.30

Finding the Fourth Proportional to 105,584.42, 145,651.26 and 65,285.30

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Solution

The fourth proportional to 105,584.42, 145,651.26 and 65,285.30 is: 90,059.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,584.42 : 145,651.26 = 65,285.30 : x
  2. Step 2: Convert to fraction form
    105,584.42/145,651.26 = 65,285.30/x
  3. Step 3: Cross multiply
    105,584.42x = 145,651.26 × 65,285.30
  4. Step 4: Simplify right side
    105,584.42x = 9,508,886,204.48
  5. Step 5: Solve for x
    x = 9,508,886,204.48/105,584.42
  6. Step 6: Final answer
    x = 90,059.56

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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.