Home / 185,299.18-255,712.86-100,416.25

Finding the Fourth Proportional to 185,299.18, 255,712.86 and 100,416.25

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Solution

The fourth proportional to 185,299.18, 255,712.86 and 100,416.25 is: 138,574.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,299.18 : 255,712.86 = 100,416.25 : x
  2. Step 2: Convert to fraction form
    185,299.18/255,712.86 = 100,416.25/x
  3. Step 3: Cross multiply
    185,299.18x = 255,712.86 × 100,416.25
  4. Step 4: Simplify right side
    185,299.18x = 25,677,726,477.98
  5. Step 5: Solve for x
    x = 25,677,726,477.98/185,299.18
  6. Step 6: Final answer
    x = 138,574.42

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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.