Home / 187,198.16-258,329.66-102,315.83

Finding the Fourth Proportional to 187,198.16, 258,329.66 and 102,315.83

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Solution

The fourth proportional to 187,198.16, 258,329.66 and 102,315.83 is: 141,193.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,198.16 : 258,329.66 = 102,315.83 : x
  2. Step 2: Convert to fraction form
    187,198.16/258,329.66 = 102,315.83/x
  3. Step 3: Cross multiply
    187,198.16x = 258,329.66 × 102,315.83
  4. Step 4: Simplify right side
    187,198.16x = 26,431,211,773.29
  5. Step 5: Solve for x
    x = 26,431,211,773.29/187,198.16
  6. Step 6: Final answer
    x = 141,193.76

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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.