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Finding the Fourth Proportional to 120,940.40, 181,345.80 and 50,740.40

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Solution

The fourth proportional to 120,940.40, 181,345.80 and 50,740.40 is: 76,083.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,940.40 : 181,345.80 = 50,740.40 : x
  2. Step 2: Convert to fraction form
    120,940.40/181,345.80 = 50,740.40/x
  3. Step 3: Cross multiply
    120,940.40x = 181,345.80 × 50,740.40
  4. Step 4: Simplify right side
    120,940.40x = 9,201,558,430.32
  5. Step 5: Solve for x
    x = 9,201,558,430.32/120,940.40
  6. Step 6: Final answer
    x = 76,083.41

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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.