Home / 123,816.05-185,669.40-48,911.30

Finding the Fourth Proportional to 123,816.05, 185,669.40 and 48,911.30

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Solution

The fourth proportional to 123,816.05, 185,669.40 and 48,911.30 is: 73,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,816.05 : 185,669.40 = 48,911.30 : x
  2. Step 2: Convert to fraction form
    123,816.05/185,669.40 = 48,911.30/x
  3. Step 3: Cross multiply
    123,816.05x = 185,669.40 × 48,911.30
  4. Step 4: Simplify right side
    123,816.05x = 9,081,331,724.22
  5. Step 5: Solve for x
    x = 9,081,331,724.22/123,816.05
  6. Step 6: Final answer
    x = 73,345.35

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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.