Home / 99,974.84-137,961.09-59,165.42

Finding the Fourth Proportional to 99,974.84, 137,961.09 and 59,165.42

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Solution

The fourth proportional to 99,974.84, 137,961.09 and 59,165.42 is: 81,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,974.84 : 137,961.09 = 59,165.42 : x
  2. Step 2: Convert to fraction form
    99,974.84/137,961.09 = 59,165.42/x
  3. Step 3: Cross multiply
    99,974.84x = 137,961.09 × 59,165.42
  4. Step 4: Simplify right side
    99,974.84x = 8,162,525,833.51
  5. Step 5: Solve for x
    x = 8,162,525,833.51/99,974.84
  6. Step 6: Final answer
    x = 81,645.80

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1.5x scale

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.