Home / 187,511.10-258,766.83-102,628.86

Finding the Fourth Proportional to 187,511.10, 258,766.83 and 102,628.86

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Solution

The fourth proportional to 187,511.10, 258,766.83 and 102,628.86 is: 141,628.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,511.10 : 258,766.83 = 102,628.86 : x
  2. Step 2: Convert to fraction form
    187,511.10/258,766.83 = 102,628.86/x
  3. Step 3: Cross multiply
    187,511.10x = 258,766.83 × 102,628.86
  4. Step 4: Simplify right side
    187,511.10x = 26,556,944,768.71
  5. Step 5: Solve for x
    x = 26,556,944,768.71/187,511.10
  6. Step 6: Final answer
    x = 141,628.65

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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.