Home / 99,218.21-136,922.58-53,897.04

Finding the Fourth Proportional to 99,218.21, 136,922.58 and 53,897.04

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Solution

The fourth proportional to 99,218.21, 136,922.58 and 53,897.04 is: 74,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,218.21 : 136,922.58 = 53,897.04 : x
  2. Step 2: Convert to fraction form
    99,218.21/136,922.58 = 53,897.04/x
  3. Step 3: Cross multiply
    99,218.21x = 136,922.58 × 53,897.04
  4. Step 4: Simplify right side
    99,218.21x = 7,379,721,771.16
  5. Step 5: Solve for x
    x = 7,379,721,771.16/99,218.21
  6. Step 6: Final answer
    x = 74,378.71

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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.