Home / 185,729.12-256,299-100,844.24

Finding the Fourth Proportional to 185,729.12, 256,299 and 100,844.24

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Solution

The fourth proportional to 185,729.12, 256,299 and 100,844.24 is: 139,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,729.12 : 256,299 = 100,844.24 : x
  2. Step 2: Convert to fraction form
    185,729.12/256,299 = 100,844.24/x
  3. Step 3: Cross multiply
    185,729.12x = 256,299 × 100,844.24
  4. Step 4: Simplify right side
    185,729.12x = 25,846,277,867.76
  5. Step 5: Solve for x
    x = 25,846,277,867.76/185,729.12
  6. Step 6: Final answer
    x = 139,161.15

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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.