Home / 187,786.52-281,482.95-69,382.34

Finding the Fourth Proportional to 187,786.52, 281,482.95 and 69,382.34

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Solution

The fourth proportional to 187,786.52, 281,482.95 and 69,382.34 is: 104,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,786.52 : 281,482.95 = 69,382.34 : x
  2. Step 2: Convert to fraction form
    187,786.52/281,482.95 = 69,382.34/x
  3. Step 3: Cross multiply
    187,786.52x = 281,482.95 × 69,382.34
  4. Step 4: Simplify right side
    187,786.52x = 19,529,945,394.19
  5. Step 5: Solve for x
    x = 19,529,945,394.19/187,786.52
  6. Step 6: Final answer
    x = 104,000.78

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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.