Home / 111,660.04-153,998.58-75,791.08

Finding the Fourth Proportional to 111,660.04, 153,998.58 and 75,791.08

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Solution

The fourth proportional to 111,660.04, 153,998.58 and 75,791.08 is: 104,529.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,660.04 : 153,998.58 = 75,791.08 : x
  2. Step 2: Convert to fraction form
    111,660.04/153,998.58 = 75,791.08/x
  3. Step 3: Cross multiply
    111,660.04x = 153,998.58 × 75,791.08
  4. Step 4: Simplify right side
    111,660.04x = 11,671,718,696.67
  5. Step 5: Solve for x
    x = 11,671,718,696.67/111,660.04
  6. Step 6: Final answer
    x = 104,529.06

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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.