Home / 136,774.69-188,780.57-80,204.29

Finding the Fourth Proportional to 136,774.69, 188,780.57 and 80,204.29

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Solution

The fourth proportional to 136,774.69, 188,780.57 and 80,204.29 is: 110,700.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,774.69 : 188,780.57 = 80,204.29 : x
  2. Step 2: Convert to fraction form
    136,774.69/188,780.57 = 80,204.29/x
  3. Step 3: Cross multiply
    136,774.69x = 188,780.57 × 80,204.29
  4. Step 4: Simplify right side
    136,774.69x = 15,141,011,181.62
  5. Step 5: Solve for x
    x = 15,141,011,181.62/136,774.69
  6. Step 6: Final answer
    x = 110,700.39

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1.5x scale

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.