Home / 117,558.03-162,120.38-90,657.39

Finding the Fourth Proportional to 117,558.03, 162,120.38 and 90,657.39

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Solution

The fourth proportional to 117,558.03, 162,120.38 and 90,657.39 is: 125,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,558.03 : 162,120.38 = 90,657.39 : x
  2. Step 2: Convert to fraction form
    117,558.03/162,120.38 = 90,657.39/x
  3. Step 3: Cross multiply
    117,558.03x = 162,120.38 × 90,657.39
  4. Step 4: Simplify right side
    117,558.03x = 14,697,410,063.32
  5. Step 5: Solve for x
    x = 14,697,410,063.32/117,558.03
  6. Step 6: Final answer
    x = 125,022.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.