Home / 109,614.04-151,251.10-66,571.08

Finding the Fourth Proportional to 109,614.04, 151,251.10 and 66,571.08

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Solution

The fourth proportional to 109,614.04, 151,251.10 and 66,571.08 is: 91,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,614.04 : 151,251.10 = 66,571.08 : x
  2. Step 2: Convert to fraction form
    109,614.04/151,251.10 = 66,571.08/x
  3. Step 3: Cross multiply
    109,614.04x = 151,251.10 × 66,571.08
  4. Step 4: Simplify right side
    109,614.04x = 10,068,949,078.19
  5. Step 5: Solve for x
    x = 10,068,949,078.19/109,614.04
  6. Step 6: Final answer
    x = 91,858.21

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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.