Home / 99,515.58-137,506.37-79,537.33

Finding the Fourth Proportional to 99,515.58, 137,506.37 and 79,537.33

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Solution

The fourth proportional to 99,515.58, 137,506.37 and 79,537.33 is: 109,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,515.58 : 137,506.37 = 79,537.33 : x
  2. Step 2: Convert to fraction form
    99,515.58/137,506.37 = 79,537.33/x
  3. Step 3: Cross multiply
    99,515.58x = 137,506.37 × 79,537.33
  4. Step 4: Simplify right side
    99,515.58x = 10,936,889,527.79
  5. Step 5: Solve for x
    x = 10,936,889,527.79/99,515.58
  6. Step 6: Final answer
    x = 109,901.28

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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.