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Finding the Fourth Proportional to 185,093.76, 255,429.52 and 100,210.88

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Solution

The fourth proportional to 185,093.76, 255,429.52 and 100,210.88 is: 138,291.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,093.76 : 255,429.52 = 100,210.88 : x
  2. Step 2: Convert to fraction form
    185,093.76/255,429.52 = 100,210.88/x
  3. Step 3: Cross multiply
    185,093.76x = 255,429.52 × 100,210.88
  4. Step 4: Simplify right side
    185,093.76x = 25,596,816,977.18
  5. Step 5: Solve for x
    x = 25,596,816,977.18/185,093.76
  6. Step 6: Final answer
    x = 138,291.09

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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.