Home / 103,179.60-154,679.40-40,042.80

Finding the Fourth Proportional to 103,179.60, 154,679.40 and 40,042.80

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Solution

The fourth proportional to 103,179.60, 154,679.40 and 40,042.80 is: 60,029.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,179.60 : 154,679.40 = 40,042.80 : x
  2. Step 2: Convert to fraction form
    103,179.60/154,679.40 = 40,042.80/x
  3. Step 3: Cross multiply
    103,179.60x = 154,679.40 × 40,042.80
  4. Step 4: Simplify right side
    103,179.60x = 6,193,796,278.32
  5. Step 5: Solve for x
    x = 6,193,796,278.32/103,179.60
  6. Step 6: Final answer
    x = 60,029.27

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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.