Home / 103,261.52-154,893.99-28,381.20

Finding the Fourth Proportional to 103,261.52, 154,893.99 and 28,381.20

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Solution

The fourth proportional to 103,261.52, 154,893.99 and 28,381.20 is: 42,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,261.52 : 154,893.99 = 28,381.20 : x
  2. Step 2: Convert to fraction form
    103,261.52/154,893.99 = 28,381.20/x
  3. Step 3: Cross multiply
    103,261.52x = 154,893.99 × 28,381.20
  4. Step 4: Simplify right side
    103,261.52x = 4,396,077,308.99
  5. Step 5: Solve for x
    x = 4,396,077,308.99/103,261.52
  6. Step 6: Final answer
    x = 42,572.27

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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.