Home / 185,520.25-256,018.08-100,637.65

Finding the Fourth Proportional to 185,520.25, 256,018.08 and 100,637.65

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Solution

The fourth proportional to 185,520.25, 256,018.08 and 100,637.65 is: 138,880.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,520.25 : 256,018.08 = 100,637.65 : x
  2. Step 2: Convert to fraction form
    185,520.25/256,018.08 = 100,637.65/x
  3. Step 3: Cross multiply
    185,520.25x = 256,018.08 × 100,637.65
  4. Step 4: Simplify right side
    185,520.25x = 25,765,057,928.71
  5. Step 5: Solve for x
    x = 25,765,057,928.71/185,520.25
  6. Step 6: Final answer
    x = 138,880.03

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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.