Home / 99,350.96-137,098.78-56,912.22

Finding the Fourth Proportional to 99,350.96, 137,098.78 and 56,912.22

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Solution

The fourth proportional to 99,350.96, 137,098.78 and 56,912.22 is: 78,535.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,350.96 : 137,098.78 = 56,912.22 : x
  2. Step 2: Convert to fraction form
    99,350.96/137,098.78 = 56,912.22/x
  3. Step 3: Cross multiply
    99,350.96x = 137,098.78 × 56,912.22
  4. Step 4: Simplify right side
    99,350.96x = 7,802,595,786.81
  5. Step 5: Solve for x
    x = 7,802,595,786.81/99,350.96
  6. Step 6: Final answer
    x = 78,535.69

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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.