Home / 185,619.68-256,155.36-100,736.80

Finding the Fourth Proportional to 185,619.68, 256,155.36 and 100,736.80

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Solution

The fourth proportional to 185,619.68, 256,155.36 and 100,736.80 is: 139,016.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,619.68 : 256,155.36 = 100,736.80 : x
  2. Step 2: Convert to fraction form
    185,619.68/256,155.36 = 100,736.80/x
  3. Step 3: Cross multiply
    185,619.68x = 256,155.36 × 100,736.80
  4. Step 4: Simplify right side
    185,619.68x = 25,804,271,269.25
  5. Step 5: Solve for x
    x = 25,804,271,269.25/185,619.68
  6. Step 6: Final answer
    x = 139,016.89

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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.