Home / 123,322.40-185,032.20-48,429.80

Finding the Fourth Proportional to 123,322.40, 185,032.20 and 48,429.80

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Solution

The fourth proportional to 123,322.40, 185,032.20 and 48,429.80 is: 72,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,322.40 : 185,032.20 = 48,429.80 : x
  2. Step 2: Convert to fraction form
    123,322.40/185,032.20 = 48,429.80/x
  3. Step 3: Cross multiply
    123,322.40x = 185,032.20 × 48,429.80
  4. Step 4: Simplify right side
    123,322.40x = 8,961,072,439.56
  5. Step 5: Solve for x
    x = 8,961,072,439.56/123,322.40
  6. Step 6: Final answer
    x = 72,663.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.