Home / 185,538.82-256,043.67-100,655.88

Finding the Fourth Proportional to 185,538.82, 256,043.67 and 100,655.88

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Solution

The fourth proportional to 185,538.82, 256,043.67 and 100,655.88 is: 138,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,538.82 : 256,043.67 = 100,655.88 : x
  2. Step 2: Convert to fraction form
    185,538.82/256,043.67 = 100,655.88/x
  3. Step 3: Cross multiply
    185,538.82x = 256,043.67 × 100,655.88
  4. Step 4: Simplify right side
    185,538.82x = 25,772,300,922.28
  5. Step 5: Solve for x
    x = 25,772,300,922.28/185,538.82
  6. Step 6: Final answer
    x = 138,905.17

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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.