Home / 111,368.24-166,790.04-86,206.88

Finding the Fourth Proportional to 111,368.24, 166,790.04 and 86,206.88

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Solution

The fourth proportional to 111,368.24, 166,790.04 and 86,206.88 is: 129,107.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,368.24 : 166,790.04 = 86,206.88 : x
  2. Step 2: Convert to fraction form
    111,368.24/166,790.04 = 86,206.88/x
  3. Step 3: Cross multiply
    111,368.24x = 166,790.04 × 86,206.88
  4. Step 4: Simplify right side
    111,368.24x = 14,378,448,963.48
  5. Step 5: Solve for x
    x = 14,378,448,963.48/111,368.24
  6. Step 6: Final answer
    x = 129,107.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.