Home / 123,429.08-185,143.62-43,448.21

Finding the Fourth Proportional to 123,429.08, 185,143.62 and 43,448.21

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Solution

The fourth proportional to 123,429.08, 185,143.62 and 43,448.21 is: 65,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,429.08 : 185,143.62 = 43,448.21 : x
  2. Step 2: Convert to fraction form
    123,429.08/185,143.62 = 43,448.21/x
  3. Step 3: Cross multiply
    123,429.08x = 185,143.62 × 43,448.21
  4. Step 4: Simplify right side
    123,429.08x = 8,044,157,956.20
  5. Step 5: Solve for x
    x = 8,044,157,956.20/123,429.08
  6. Step 6: Final answer
    x = 65,172.31

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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.