Home / 165,420.45-248,232.74-76,657.41

Finding the Fourth Proportional to 165,420.45, 248,232.74 and 76,657.41

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Solution

The fourth proportional to 165,420.45, 248,232.74 and 76,657.41 is: 115,033.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,420.45 : 248,232.74 = 76,657.41 : x
  2. Step 2: Convert to fraction form
    165,420.45/248,232.74 = 76,657.41/x
  3. Step 3: Cross multiply
    165,420.45x = 248,232.74 × 76,657.41
  4. Step 4: Simplify right side
    165,420.45x = 19,028,878,542.32
  5. Step 5: Solve for x
    x = 19,028,878,542.32/165,420.45
  6. Step 6: Final answer
    x = 115,033.41

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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.