Home / 136,788.61-188,769.05-80,200.93

Finding the Fourth Proportional to 136,788.61, 188,769.05 and 80,200.93

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Solution

The fourth proportional to 136,788.61, 188,769.05 and 80,200.93 is: 110,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,788.61 : 188,769.05 = 80,200.93 : x
  2. Step 2: Convert to fraction form
    136,788.61/188,769.05 = 80,200.93/x
  3. Step 3: Cross multiply
    136,788.61x = 188,769.05 × 80,200.93
  4. Step 4: Simplify right side
    136,788.61x = 15,139,452,621.87
  5. Step 5: Solve for x
    x = 15,139,452,621.87/136,788.61
  6. Step 6: Final answer
    x = 110,677.73

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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.