Home / 105,137.22-157,544.34-71,359.35

Finding the Fourth Proportional to 105,137.22, 157,544.34 and 71,359.35

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Solution

The fourth proportional to 105,137.22, 157,544.34 and 71,359.35 is: 106,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,137.22 : 157,544.34 = 71,359.35 : x
  2. Step 2: Convert to fraction form
    105,137.22/157,544.34 = 71,359.35/x
  3. Step 3: Cross multiply
    105,137.22x = 157,544.34 × 71,359.35
  4. Step 4: Simplify right side
    105,137.22x = 11,242,261,698.58
  5. Step 5: Solve for x
    x = 11,242,261,698.58/105,137.22
  6. Step 6: Final answer
    x = 106,929.42

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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.