Home / 106,305.40-146,753.94-72,489.52

Finding the Fourth Proportional to 106,305.40, 146,753.94 and 72,489.52

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Solution

The fourth proportional to 106,305.40, 146,753.94 and 72,489.52 is: 100,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,305.40 : 146,753.94 = 72,489.52 : x
  2. Step 2: Convert to fraction form
    106,305.40/146,753.94 = 72,489.52/x
  3. Step 3: Cross multiply
    106,305.40x = 146,753.94 × 72,489.52
  4. Step 4: Simplify right side
    106,305.40x = 10,638,122,668.71
  5. Step 5: Solve for x
    x = 10,638,122,668.71/106,305.40
  6. Step 6: Final answer
    x = 100,071.33

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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.