Home / 123,009.60-184,514.40-121,972.80

Finding the Fourth Proportional to 123,009.60, 184,514.40 and 121,972.80

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Solution

The fourth proportional to 123,009.60, 184,514.40 and 121,972.80 is: 182,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,009.60 : 184,514.40 = 121,972.80 : x
  2. Step 2: Convert to fraction form
    123,009.60/184,514.40 = 121,972.80/x
  3. Step 3: Cross multiply
    123,009.60x = 184,514.40 × 121,972.80
  4. Step 4: Simplify right side
    123,009.60x = 22,505,738,008.32
  5. Step 5: Solve for x
    x = 22,505,738,008.32/123,009.60
  6. Step 6: Final answer
    x = 182,959.20

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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.