Home / 200,659.60-276,999.42-128,157.58

Finding the Fourth Proportional to 200,659.60, 276,999.42 and 128,157.58

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Solution

The fourth proportional to 200,659.60, 276,999.42 and 128,157.58 is: 176,914.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,659.60 : 276,999.42 = 128,157.58 : x
  2. Step 2: Convert to fraction form
    200,659.60/276,999.42 = 128,157.58/x
  3. Step 3: Cross multiply
    200,659.60x = 276,999.42 × 128,157.58
  4. Step 4: Simplify right side
    200,659.60x = 35,499,575,328.60
  5. Step 5: Solve for x
    x = 35,499,575,328.60/200,659.60
  6. Step 6: Final answer
    x = 176,914.41

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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.