Home / 185,198.64-255,574.14-100,315.70

Finding the Fourth Proportional to 185,198.64, 255,574.14 and 100,315.70

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Solution

The fourth proportional to 185,198.64, 255,574.14 and 100,315.70 is: 138,435.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,198.64 : 255,574.14 = 100,315.70 : x
  2. Step 2: Convert to fraction form
    185,198.64/255,574.14 = 100,315.70/x
  3. Step 3: Cross multiply
    185,198.64x = 255,574.14 × 100,315.70
  4. Step 4: Simplify right side
    185,198.64x = 25,638,098,060.35
  5. Step 5: Solve for x
    x = 25,638,098,060.35/185,198.64
  6. Step 6: Final answer
    x = 138,435.67

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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.