Home / 185,655.40-256,197.58-100,770.64

Finding the Fourth Proportional to 185,655.40, 256,197.58 and 100,770.64

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Solution

The fourth proportional to 185,655.40, 256,197.58 and 100,770.64 is: 139,059.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,655.40 : 256,197.58 = 100,770.64 : x
  2. Step 2: Convert to fraction form
    185,655.40/256,197.58 = 100,770.64/x
  3. Step 3: Cross multiply
    185,655.40x = 256,197.58 × 100,770.64
  4. Step 4: Simplify right side
    185,655.40x = 25,817,194,103.05
  5. Step 5: Solve for x
    x = 25,817,194,103.05/185,655.40
  6. Step 6: Final answer
    x = 139,059.75

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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.