Home / 103,243-154,759.92-69,966.44

Finding the Fourth Proportional to 103,243, 154,759.92 and 69,966.44

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Solution

The fourth proportional to 103,243, 154,759.92 and 69,966.44 is: 104,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,243 : 154,759.92 = 69,966.44 : x
  2. Step 2: Convert to fraction form
    103,243/154,759.92 = 69,966.44/x
  3. Step 3: Cross multiply
    103,243x = 154,759.92 × 69,966.44
  4. Step 4: Simplify right side
    103,243x = 10,828,000,657.08
  5. Step 5: Solve for x
    x = 10,828,000,657.08/103,243
  6. Step 6: Final answer
    x = 104,878.79

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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.