Home / 123,006.48-184,091.40-78,663.60

Finding the Fourth Proportional to 123,006.48, 184,091.40 and 78,663.60

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Solution

The fourth proportional to 123,006.48, 184,091.40 and 78,663.60 is: 117,727.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,006.48 : 184,091.40 = 78,663.60 : x
  2. Step 2: Convert to fraction form
    123,006.48/184,091.40 = 78,663.60/x
  3. Step 3: Cross multiply
    123,006.48x = 184,091.40 × 78,663.60
  4. Step 4: Simplify right side
    123,006.48x = 14,481,292,253.04
  5. Step 5: Solve for x
    x = 14,481,292,253.04/123,006.48
  6. Step 6: Final answer
    x = 117,727.88

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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.