Home / 145,632.13-200,964.85-81,974.03

Finding the Fourth Proportional to 145,632.13, 200,964.85 and 81,974.03

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Solution

The fourth proportional to 145,632.13, 200,964.85 and 81,974.03 is: 113,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,632.13 : 200,964.85 = 81,974.03 : x
  2. Step 2: Convert to fraction form
    145,632.13/200,964.85 = 81,974.03/x
  3. Step 3: Cross multiply
    145,632.13x = 200,964.85 × 81,974.03
  4. Step 4: Simplify right side
    145,632.13x = 16,473,897,433.09
  5. Step 5: Solve for x
    x = 16,473,897,433.09/145,632.13
  6. Step 6: Final answer
    x = 113,119.94

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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.