Home / 103,256.20-154,886.01-28,375.89

Finding the Fourth Proportional to 103,256.20, 154,886.01 and 28,375.89

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Solution

The fourth proportional to 103,256.20, 154,886.01 and 28,375.89 is: 42,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,256.20 : 154,886.01 = 28,375.89 : x
  2. Step 2: Convert to fraction form
    103,256.20/154,886.01 = 28,375.89/x
  3. Step 3: Cross multiply
    103,256.20x = 154,886.01 × 28,375.89
  4. Step 4: Simplify right side
    103,256.20x = 4,395,029,241.34
  5. Step 5: Solve for x
    x = 4,395,029,241.34/103,256.20
  6. Step 6: Final answer
    x = 42,564.31

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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.