Home / 129,014.01-178,043.49-71,654.03

Finding the Fourth Proportional to 129,014.01, 178,043.49 and 71,654.03

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Solution

The fourth proportional to 129,014.01, 178,043.49 and 71,654.03 is: 98,884.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,014.01 : 178,043.49 = 71,654.03 : x
  2. Step 2: Convert to fraction form
    129,014.01/178,043.49 = 71,654.03/x
  3. Step 3: Cross multiply
    129,014.01x = 178,043.49 × 71,654.03
  4. Step 4: Simplify right side
    129,014.01x = 12,757,532,683.55
  5. Step 5: Solve for x
    x = 12,757,532,683.55/129,014.01
  6. Step 6: Final answer
    x = 98,884.86

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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.