Home / 187,709.80-281,606.21-103,426.57

Finding the Fourth Proportional to 187,709.80, 281,606.21 and 103,426.57

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Solution

The fourth proportional to 187,709.80, 281,606.21 and 103,426.57 is: 155,162.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,709.80 : 281,606.21 = 103,426.57 : x
  2. Step 2: Convert to fraction form
    187,709.80/281,606.21 = 103,426.57/x
  3. Step 3: Cross multiply
    187,709.80x = 281,606.21 × 103,426.57
  4. Step 4: Simplify right side
    187,709.80x = 29,125,564,391.00
  5. Step 5: Solve for x
    x = 29,125,564,391.00/187,709.80
  6. Step 6: Final answer
    x = 155,162.73

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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.