Home / 111,601.68-153,953.19-71,273.04

Finding the Fourth Proportional to 111,601.68, 153,953.19 and 71,273.04

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Solution

The fourth proportional to 111,601.68, 153,953.19 and 71,273.04 is: 98,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,601.68 : 153,953.19 = 71,273.04 : x
  2. Step 2: Convert to fraction form
    111,601.68/153,953.19 = 71,273.04/x
  3. Step 3: Cross multiply
    111,601.68x = 153,953.19 × 71,273.04
  4. Step 4: Simplify right side
    111,601.68x = 10,972,711,869.00
  5. Step 5: Solve for x
    x = 10,972,711,869.00/111,601.68
  6. Step 6: Final answer
    x = 98,320.31

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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.