Home / 109,660.14-151,341.10-66,629.66

Finding the Fourth Proportional to 109,660.14, 151,341.10 and 66,629.66

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Solution

The fourth proportional to 109,660.14, 151,341.10 and 66,629.66 is: 91,955.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,660.14 : 151,341.10 = 66,629.66 : x
  2. Step 2: Convert to fraction form
    109,660.14/151,341.10 = 66,629.66/x
  3. Step 3: Cross multiply
    109,660.14x = 151,341.10 × 66,629.66
  4. Step 4: Simplify right side
    109,660.14x = 10,083,806,037.03
  5. Step 5: Solve for x
    x = 10,083,806,037.03/109,660.14
  6. Step 6: Final answer
    x = 91,955.07

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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.