Home / 187,561.85-258,835.37-102,678.92

Finding the Fourth Proportional to 187,561.85, 258,835.37 and 102,678.92

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Solution

The fourth proportional to 187,561.85, 258,835.37 and 102,678.92 is: 141,696.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,561.85 : 258,835.37 = 102,678.92 : x
  2. Step 2: Convert to fraction form
    187,561.85/258,835.37 = 102,678.92/x
  3. Step 3: Cross multiply
    187,561.85x = 258,835.37 × 102,678.92
  4. Step 4: Simplify right side
    187,561.85x = 26,576,934,441.83
  5. Step 5: Solve for x
    x = 26,576,934,441.83/187,561.85
  6. Step 6: Final answer
    x = 141,696.91

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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.