Home / 99,408.96-137,235.18-76,696.92

Finding the Fourth Proportional to 99,408.96, 137,235.18 and 76,696.92

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Solution

The fourth proportional to 99,408.96, 137,235.18 and 76,696.92 is: 105,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,408.96 : 137,235.18 = 76,696.92 : x
  2. Step 2: Convert to fraction form
    99,408.96/137,235.18 = 76,696.92/x
  3. Step 3: Cross multiply
    99,408.96x = 137,235.18 × 76,696.92
  4. Step 4: Simplify right side
    99,408.96x = 10,525,515,621.65
  5. Step 5: Solve for x
    x = 10,525,515,621.65/99,408.96
  6. Step 6: Final answer
    x = 105,880.96

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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.