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Finding the Fourth Proportional to 118,290.87, 163,245.06 and 64,579.37

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Solution

The fourth proportional to 118,290.87, 163,245.06 and 64,579.37 is: 89,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,290.87 : 163,245.06 = 64,579.37 : x
  2. Step 2: Convert to fraction form
    118,290.87/163,245.06 = 64,579.37/x
  3. Step 3: Cross multiply
    118,290.87x = 163,245.06 × 64,579.37
  4. Step 4: Simplify right side
    118,290.87x = 10,542,262,314.19
  5. Step 5: Solve for x
    x = 10,542,262,314.19/118,290.87
  6. Step 6: Final answer
    x = 89,121.52

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1.5x scale

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.