Home / 108,811.12-163,185.08-45,629.60

Finding the Fourth Proportional to 108,811.12, 163,185.08 and 45,629.60

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Solution

The fourth proportional to 108,811.12, 163,185.08 and 45,629.60 is: 68,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,811.12 : 163,185.08 = 45,629.60 : x
  2. Step 2: Convert to fraction form
    108,811.12/163,185.08 = 45,629.60/x
  3. Step 3: Cross multiply
    108,811.12x = 163,185.08 × 45,629.60
  4. Step 4: Simplify right side
    108,811.12x = 7,446,069,926.37
  5. Step 5: Solve for x
    x = 7,446,069,926.37/108,811.12
  6. Step 6: Final answer
    x = 68,431.15

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1.5x scale

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.