Home / 103,111.90-154,667.73-28,232.62

Finding the Fourth Proportional to 103,111.90, 154,667.73 and 28,232.62

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Solution

The fourth proportional to 103,111.90, 154,667.73 and 28,232.62 is: 42,348.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,111.90 : 154,667.73 = 28,232.62 : x
  2. Step 2: Convert to fraction form
    103,111.90/154,667.73 = 28,232.62/x
  3. Step 3: Cross multiply
    103,111.90x = 154,667.73 × 28,232.62
  4. Step 4: Simplify right side
    103,111.90x = 4,366,675,247.35
  5. Step 5: Solve for x
    x = 4,366,675,247.35/103,111.90
  6. Step 6: Final answer
    x = 42,348.90

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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.