Home / 185,006.07-255,308.34-100,123.11

Finding the Fourth Proportional to 185,006.07, 255,308.34 and 100,123.11

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Solution

The fourth proportional to 185,006.07, 255,308.34 and 100,123.11 is: 138,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,006.07 : 255,308.34 = 100,123.11 : x
  2. Step 2: Convert to fraction form
    185,006.07/255,308.34 = 100,123.11/x
  3. Step 3: Cross multiply
    185,006.07x = 255,308.34 × 100,123.11
  4. Step 4: Simplify right side
    185,006.07x = 25,562,265,009.74
  5. Step 5: Solve for x
    x = 25,562,265,009.74/185,006.07
  6. Step 6: Final answer
    x = 138,169.87

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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.