Home / 143,844.60-215,864.10-80,664.60

Finding the Fourth Proportional to 143,844.60, 215,864.10 and 80,664.60

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Solution

The fourth proportional to 143,844.60, 215,864.10 and 80,664.60 is: 121,051.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,844.60 : 215,864.10 = 80,664.60 : x
  2. Step 2: Convert to fraction form
    143,844.60/215,864.10 = 80,664.60/x
  3. Step 3: Cross multiply
    143,844.60x = 215,864.10 × 80,664.60
  4. Step 4: Simplify right side
    143,844.60x = 17,412,591,280.86
  5. Step 5: Solve for x
    x = 17,412,591,280.86/143,844.60
  6. Step 6: Final answer
    x = 121,051.41

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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.