Home / 122,781.04-184,171.56-81,218.32

Finding the Fourth Proportional to 122,781.04, 184,171.56 and 81,218.32

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Solution

The fourth proportional to 122,781.04, 184,171.56 and 81,218.32 is: 121,827.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,781.04 : 184,171.56 = 81,218.32 : x
  2. Step 2: Convert to fraction form
    122,781.04/184,171.56 = 81,218.32/x
  3. Step 3: Cross multiply
    122,781.04x = 184,171.56 × 81,218.32
  4. Step 4: Simplify right side
    122,781.04x = 14,958,103,368.03
  5. Step 5: Solve for x
    x = 14,958,103,368.03/122,781.04
  6. Step 6: Final answer
    x = 121,827.47

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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.