Home / 259,528.11-389,258.50-82,053.03

Finding the Fourth Proportional to 259,528.11, 389,258.50 and 82,053.03

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Solution

The fourth proportional to 259,528.11, 389,258.50 and 82,053.03 is: 123,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,528.11 : 389,258.50 = 82,053.03 : x
  2. Step 2: Convert to fraction form
    259,528.11/389,258.50 = 82,053.03/x
  3. Step 3: Cross multiply
    259,528.11x = 389,258.50 × 82,053.03
  4. Step 4: Simplify right side
    259,528.11x = 31,939,839,378.26
  5. Step 5: Solve for x
    x = 31,939,839,378.26/259,528.11
  6. Step 6: Final answer
    x = 123,068.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.