Home / 103,681.15-155,521.73-51,193.15

Finding the Fourth Proportional to 103,681.15, 155,521.73 and 51,193.15

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Solution

The fourth proportional to 103,681.15, 155,521.73 and 51,193.15 is: 76,789.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,681.15 : 155,521.73 = 51,193.15 : x
  2. Step 2: Convert to fraction form
    103,681.15/155,521.73 = 51,193.15/x
  3. Step 3: Cross multiply
    103,681.15x = 155,521.73 × 51,193.15
  4. Step 4: Simplify right side
    103,681.15x = 7,961,647,252.15
  5. Step 5: Solve for x
    x = 7,961,647,252.15/103,681.15
  6. Step 6: Final answer
    x = 76,789.73

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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.