Home / 136,674.08-188,628.96-80,108

Finding the Fourth Proportional to 136,674.08, 188,628.96 and 80,108

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Solution

The fourth proportional to 136,674.08, 188,628.96 and 80,108 is: 110,560.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,674.08 : 188,628.96 = 80,108 : x
  2. Step 2: Convert to fraction form
    136,674.08/188,628.96 = 80,108/x
  3. Step 3: Cross multiply
    136,674.08x = 188,628.96 × 80,108
  4. Step 4: Simplify right side
    136,674.08x = 15,110,688,727.68
  5. Step 5: Solve for x
    x = 15,110,688,727.68/136,674.08
  6. Step 6: Final answer
    x = 110,560.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.