Home / 185,202.48-255,578.58-100,319.76

Finding the Fourth Proportional to 185,202.48, 255,578.58 and 100,319.76

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Solution

The fourth proportional to 185,202.48, 255,578.58 and 100,319.76 is: 138,440.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,202.48 : 255,578.58 = 100,319.76 : x
  2. Step 2: Convert to fraction form
    185,202.48/255,578.58 = 100,319.76/x
  3. Step 3: Cross multiply
    185,202.48x = 255,578.58 × 100,319.76
  4. Step 4: Simplify right side
    185,202.48x = 25,639,581,806.74
  5. Step 5: Solve for x
    x = 25,639,581,806.74/185,202.48
  6. Step 6: Final answer
    x = 138,440.81

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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.