Home / 187,511.68-258,772.31-102,628.72

Finding the Fourth Proportional to 187,511.68, 258,772.31 and 102,628.72

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Solution

The fourth proportional to 187,511.68, 258,772.31 and 102,628.72 is: 141,631.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,511.68 : 258,772.31 = 102,628.72 : x
  2. Step 2: Convert to fraction form
    187,511.68/258,772.31 = 102,628.72/x
  3. Step 3: Cross multiply
    187,511.68x = 258,772.31 × 102,628.72
  4. Step 4: Simplify right side
    187,511.68x = 26,557,470,946.74
  5. Step 5: Solve for x
    x = 26,557,470,946.74/187,511.68
  6. Step 6: Final answer
    x = 141,631.02

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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.