Home / 185,811.39-256,421.07-100,928.48

Finding the Fourth Proportional to 185,811.39, 256,421.07 and 100,928.48

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Solution

The fourth proportional to 185,811.39, 256,421.07 and 100,928.48 is: 139,282.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,811.39 : 256,421.07 = 100,928.48 : x
  2. Step 2: Convert to fraction form
    185,811.39/256,421.07 = 100,928.48/x
  3. Step 3: Cross multiply
    185,811.39x = 256,421.07 × 100,928.48
  4. Step 4: Simplify right side
    185,811.39x = 25,880,187,552.97
  5. Step 5: Solve for x
    x = 25,880,187,552.97/185,811.39
  6. Step 6: Final answer
    x = 139,282.03

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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.