Home / 98,890.21-136,465.67-58,053.68

Finding the Fourth Proportional to 98,890.21, 136,465.67 and 58,053.68

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Solution

The fourth proportional to 98,890.21, 136,465.67 and 58,053.68 is: 80,112.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,890.21 : 136,465.67 = 58,053.68 : x
  2. Step 2: Convert to fraction form
    98,890.21/136,465.67 = 58,053.68/x
  3. Step 3: Cross multiply
    98,890.21x = 136,465.67 × 58,053.68
  4. Step 4: Simplify right side
    98,890.21x = 7,922,333,654.84
  5. Step 5: Solve for x
    x = 7,922,333,654.84/98,890.21
  6. Step 6: Final answer
    x = 80,112.42

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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.