Home / 111,320.10-153,650.79-68,853.96

Finding the Fourth Proportional to 111,320.10, 153,650.79 and 68,853.96

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Solution

The fourth proportional to 111,320.10, 153,650.79 and 68,853.96 is: 95,036.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,320.10 : 153,650.79 = 68,853.96 : x
  2. Step 2: Convert to fraction form
    111,320.10/153,650.79 = 68,853.96/x
  3. Step 3: Cross multiply
    111,320.10x = 153,650.79 × 68,853.96
  4. Step 4: Simplify right side
    111,320.10x = 10,579,465,348.63
  5. Step 5: Solve for x
    x = 10,579,465,348.63/111,320.10
  6. Step 6: Final answer
    x = 95,036.43

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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.