Home / 180,221.04-270,410.64-85,519.71

Finding the Fourth Proportional to 180,221.04, 270,410.64 and 85,519.71

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Solution

The fourth proportional to 180,221.04, 270,410.64 and 85,519.71 is: 128,317.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,221.04 : 270,410.64 = 85,519.71 : x
  2. Step 2: Convert to fraction form
    180,221.04/270,410.64 = 85,519.71/x
  3. Step 3: Cross multiply
    180,221.04x = 270,410.64 × 85,519.71
  4. Step 4: Simplify right side
    180,221.04x = 23,125,439,513.71
  5. Step 5: Solve for x
    x = 23,125,439,513.71/180,221.04
  6. Step 6: Final answer
    x = 128,317.09

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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.