Home / 185,211.52-255,591.87-100,328.56

Finding the Fourth Proportional to 185,211.52, 255,591.87 and 100,328.56

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Solution

The fourth proportional to 185,211.52, 255,591.87 and 100,328.56 is: 138,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,211.52 : 255,591.87 = 100,328.56 : x
  2. Step 2: Convert to fraction form
    185,211.52/255,591.87 = 100,328.56/x
  3. Step 3: Cross multiply
    185,211.52x = 255,591.87 × 100,328.56
  4. Step 4: Simplify right side
    185,211.52x = 25,643,164,264.81
  5. Step 5: Solve for x
    x = 25,643,164,264.81/185,211.52
  6. Step 6: Final answer
    x = 138,453.40

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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.