Home / 99,228.07-136,934.19-53,905.69

Finding the Fourth Proportional to 99,228.07, 136,934.19 and 53,905.69

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Solution

The fourth proportional to 99,228.07, 136,934.19 and 53,905.69 is: 74,389.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,228.07 : 136,934.19 = 53,905.69 : x
  2. Step 2: Convert to fraction form
    99,228.07/136,934.19 = 53,905.69/x
  3. Step 3: Cross multiply
    99,228.07x = 136,934.19 × 53,905.69
  4. Step 4: Simplify right side
    99,228.07x = 7,381,531,996.54
  5. Step 5: Solve for x
    x = 7,381,531,996.54/99,228.07
  6. Step 6: Final answer
    x = 74,389.56

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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.