Home / 180,488.12-270,553.68-85,551.60

Finding the Fourth Proportional to 180,488.12, 270,553.68 and 85,551.60

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Solution

The fourth proportional to 180,488.12, 270,553.68 and 85,551.60 is: 128,242.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,488.12 : 270,553.68 = 85,551.60 : x
  2. Step 2: Convert to fraction form
    180,488.12/270,553.68 = 85,551.60/x
  3. Step 3: Cross multiply
    180,488.12x = 270,553.68 × 85,551.60
  4. Step 4: Simplify right side
    180,488.12x = 23,146,300,209.89
  5. Step 5: Solve for x
    x = 23,146,300,209.89/180,488.12
  6. Step 6: Final answer
    x = 128,242.79

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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.