Home / 187,231.70-280,840.26-103,158.56

Finding the Fourth Proportional to 187,231.70, 280,840.26 and 103,158.56

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Solution

The fourth proportional to 187,231.70, 280,840.26 and 103,158.56 is: 154,733.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,231.70 : 280,840.26 = 103,158.56 : x
  2. Step 2: Convert to fraction form
    187,231.70/280,840.26 = 103,158.56/x
  3. Step 3: Cross multiply
    187,231.70x = 280,840.26 × 103,158.56
  4. Step 4: Simplify right side
    187,231.70x = 28,971,077,900.57
  5. Step 5: Solve for x
    x = 28,971,077,900.57/187,231.70
  6. Step 6: Final answer
    x = 154,733.83

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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.