Home / 185,651.40-256,203.56-100,768.28

Finding the Fourth Proportional to 185,651.40, 256,203.56 and 100,768.28

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Solution

The fourth proportional to 185,651.40, 256,203.56 and 100,768.28 is: 139,062.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,651.40 : 256,203.56 = 100,768.28 : x
  2. Step 2: Convert to fraction form
    185,651.40/256,203.56 = 100,768.28/x
  3. Step 3: Cross multiply
    185,651.40x = 256,203.56 × 100,768.28
  4. Step 4: Simplify right side
    185,651.40x = 25,817,192,071.08
  5. Step 5: Solve for x
    x = 25,817,192,071.08/185,651.40
  6. Step 6: Final answer
    x = 139,062.74

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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.