Home / 118,146.60-163,039.62-64,431.64

Finding the Fourth Proportional to 118,146.60, 163,039.62 and 64,431.64

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Solution

The fourth proportional to 118,146.60, 163,039.62 and 64,431.64 is: 88,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,146.60 : 163,039.62 = 64,431.64 : x
  2. Step 2: Convert to fraction form
    118,146.60/163,039.62 = 64,431.64/x
  3. Step 3: Cross multiply
    118,146.60x = 163,039.62 × 64,431.64
  4. Step 4: Simplify right side
    118,146.60x = 10,504,910,101.58
  5. Step 5: Solve for x
    x = 10,504,910,101.58/118,146.60
  6. Step 6: Final answer
    x = 88,914.20

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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.