Home / 185,378.11-255,821.20-100,495.17

Finding the Fourth Proportional to 185,378.11, 255,821.20 and 100,495.17

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Solution

The fourth proportional to 185,378.11, 255,821.20 and 100,495.17 is: 138,683.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,378.11 : 255,821.20 = 100,495.17 : x
  2. Step 2: Convert to fraction form
    185,378.11/255,821.20 = 100,495.17/x
  3. Step 3: Cross multiply
    185,378.11x = 255,821.20 × 100,495.17
  4. Step 4: Simplify right side
    185,378.11x = 25,708,794,732.37
  5. Step 5: Solve for x
    x = 25,708,794,732.37/185,378.11
  6. Step 6: Final answer
    x = 138,683.01

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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.