Home / 174,080.10-261,120.15-85,506.60

Finding the Fourth Proportional to 174,080.10, 261,120.15 and 85,506.60

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Solution

The fourth proportional to 174,080.10, 261,120.15 and 85,506.60 is: 128,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,080.10 : 261,120.15 = 85,506.60 : x
  2. Step 2: Convert to fraction form
    174,080.10/261,120.15 = 85,506.60/x
  3. Step 3: Cross multiply
    174,080.10x = 261,120.15 × 85,506.60
  4. Step 4: Simplify right side
    174,080.10x = 22,327,496,217.99
  5. Step 5: Solve for x
    x = 22,327,496,217.99/174,080.10
  6. Step 6: Final answer
    x = 128,259.90

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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.