Home / 173,865.10-260,459.26-128,189.60

Finding the Fourth Proportional to 173,865.10, 260,459.26 and 128,189.60

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Solution

The fourth proportional to 173,865.10, 260,459.26 and 128,189.60 is: 192,034.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,865.10 : 260,459.26 = 128,189.60 : x
  2. Step 2: Convert to fraction form
    173,865.10/260,459.26 = 128,189.60/x
  3. Step 3: Cross multiply
    173,865.10x = 260,459.26 × 128,189.60
  4. Step 4: Simplify right side
    173,865.10x = 33,388,168,355.70
  5. Step 5: Solve for x
    x = 33,388,168,355.70/173,865.10
  6. Step 6: Final answer
    x = 192,034.91

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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.