Home / 136,917.15-204,876.15-80,784.15

Finding the Fourth Proportional to 136,917.15, 204,876.15 and 80,784.15

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Solution

The fourth proportional to 136,917.15, 204,876.15 and 80,784.15 is: 120,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,917.15 : 204,876.15 = 80,784.15 : x
  2. Step 2: Convert to fraction form
    136,917.15/204,876.15 = 80,784.15/x
  3. Step 3: Cross multiply
    136,917.15x = 204,876.15 × 80,784.15
  4. Step 4: Simplify right side
    136,917.15x = 16,550,745,633.02
  5. Step 5: Solve for x
    x = 16,550,745,633.02/136,917.15
  6. Step 6: Final answer
    x = 120,881.46

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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.