Home / 109,867.21-151,628.05-66,849.83

Finding the Fourth Proportional to 109,867.21, 151,628.05 and 66,849.83

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Solution

The fourth proportional to 109,867.21, 151,628.05 and 66,849.83 is: 92,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,867.21 : 151,628.05 = 66,849.83 : x
  2. Step 2: Convert to fraction form
    109,867.21/151,628.05 = 66,849.83/x
  3. Step 3: Cross multiply
    109,867.21x = 151,628.05 × 66,849.83
  4. Step 4: Simplify right side
    109,867.21x = 10,136,309,686.21
  5. Step 5: Solve for x
    x = 10,136,309,686.21/109,867.21
  6. Step 6: Final answer
    x = 92,259.64

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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.