Home / 142,035.94-196,003.04-81,564.04

Finding the Fourth Proportional to 142,035.94, 196,003.04 and 81,564.04

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Solution

The fourth proportional to 142,035.94, 196,003.04 and 81,564.04 is: 112,554.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,035.94 : 196,003.04 = 81,564.04 : x
  2. Step 2: Convert to fraction form
    142,035.94/196,003.04 = 81,564.04/x
  3. Step 3: Cross multiply
    142,035.94x = 196,003.04 × 81,564.04
  4. Step 4: Simplify right side
    142,035.94x = 15,986,799,794.68
  5. Step 5: Solve for x
    x = 15,986,799,794.68/142,035.94
  6. Step 6: Final answer
    x = 112,554.61

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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.