Home / 187,386.08-258,699.68-123,908

Finding the Fourth Proportional to 187,386.08, 258,699.68 and 123,908

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Solution

The fourth proportional to 187,386.08, 258,699.68 and 123,908 is: 171,063.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,386.08 : 258,699.68 = 123,908 : x
  2. Step 2: Convert to fraction form
    187,386.08/258,699.68 = 123,908/x
  3. Step 3: Cross multiply
    187,386.08x = 258,699.68 × 123,908
  4. Step 4: Simplify right side
    187,386.08x = 32,054,959,949.44
  5. Step 5: Solve for x
    x = 32,054,959,949.44/187,386.08
  6. Step 6: Final answer
    x = 171,063.72

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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.