Home / 90,924.10-125,441.30-90,783.92

Finding the Fourth Proportional to 90,924.10, 125,441.30 and 90,783.92

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Solution

The fourth proportional to 90,924.10, 125,441.30 and 90,783.92 is: 125,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,924.10 : 125,441.30 = 90,783.92 : x
  2. Step 2: Convert to fraction form
    90,924.10/125,441.30 = 90,783.92/x
  3. Step 3: Cross multiply
    90,924.10x = 125,441.30 × 90,783.92
  4. Step 4: Simplify right side
    90,924.10x = 11,388,052,943.90
  5. Step 5: Solve for x
    x = 11,388,052,943.90/90,924.10
  6. Step 6: Final answer
    x = 125,247.90

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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.