Home / 98,813.40-136,270.37-91,474.19

Finding the Fourth Proportional to 98,813.40, 136,270.37 and 91,474.19

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Solution

The fourth proportional to 98,813.40, 136,270.37 and 91,474.19 is: 126,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,813.40 : 136,270.37 = 91,474.19 : x
  2. Step 2: Convert to fraction form
    98,813.40/136,270.37 = 91,474.19/x
  3. Step 3: Cross multiply
    98,813.40x = 136,270.37 × 91,474.19
  4. Step 4: Simplify right side
    98,813.40x = 12,465,221,716.75
  5. Step 5: Solve for x
    x = 12,465,221,716.75/98,813.40
  6. Step 6: Final answer
    x = 126,149.10

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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.