Home / 187,815.80-281,205.30-146,343.80

Finding the Fourth Proportional to 187,815.80, 281,205.30 and 146,343.80

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Solution

The fourth proportional to 187,815.80, 281,205.30 and 146,343.80 is: 219,111.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,815.80 : 281,205.30 = 146,343.80 : x
  2. Step 2: Convert to fraction form
    187,815.80/281,205.30 = 146,343.80/x
  3. Step 3: Cross multiply
    187,815.80x = 281,205.30 × 146,343.80
  4. Step 4: Simplify right side
    187,815.80x = 41,152,652,182.14
  5. Step 5: Solve for x
    x = 41,152,652,182.14/187,815.80
  6. Step 6: Final answer
    x = 219,111.77

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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.