Home / 261,908.33-392,533.82-111,972.40

Finding the Fourth Proportional to 261,908.33, 392,533.82 and 111,972.40

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Solution

The fourth proportional to 261,908.33, 392,533.82 and 111,972.40 is: 167,818.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,908.33 : 392,533.82 = 111,972.40 : x
  2. Step 2: Convert to fraction form
    261,908.33/392,533.82 = 111,972.40/x
  3. Step 3: Cross multiply
    261,908.33x = 392,533.82 × 111,972.40
  4. Step 4: Simplify right side
    261,908.33x = 43,952,952,785.27
  5. Step 5: Solve for x
    x = 43,952,952,785.27/261,908.33
  6. Step 6: Final answer
    x = 167,818.08

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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.