Home / 99,217.74-136,973.79-76,506.96

Finding the Fourth Proportional to 99,217.74, 136,973.79 and 76,506.96

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Solution

The fourth proportional to 99,217.74, 136,973.79 and 76,506.96 is: 105,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,217.74 : 136,973.79 = 76,506.96 : x
  2. Step 2: Convert to fraction form
    99,217.74/136,973.79 = 76,506.96/x
  3. Step 3: Cross multiply
    99,217.74x = 136,973.79 × 76,506.96
  4. Step 4: Simplify right side
    99,217.74x = 10,479,448,272.58
  5. Step 5: Solve for x
    x = 10,479,448,272.58/99,217.74
  6. Step 6: Final answer
    x = 105,620.71

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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.