Home / 109,668.28-151,345.14-66,633.16

Finding the Fourth Proportional to 109,668.28, 151,345.14 and 66,633.16

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Solution

The fourth proportional to 109,668.28, 151,345.14 and 66,633.16 is: 91,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,668.28 : 151,345.14 = 66,633.16 : x
  2. Step 2: Convert to fraction form
    109,668.28/151,345.14 = 66,633.16/x
  3. Step 3: Cross multiply
    109,668.28x = 151,345.14 × 66,633.16
  4. Step 4: Simplify right side
    109,668.28x = 10,084,604,928.84
  5. Step 5: Solve for x
    x = 10,084,604,928.84/109,668.28
  6. Step 6: Final answer
    x = 91,955.53

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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.