Home / 187,671.40-258,983.86-107,124.44

Finding the Fourth Proportional to 187,671.40, 258,983.86 and 107,124.44

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Solution

The fourth proportional to 187,671.40, 258,983.86 and 107,124.44 is: 147,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,671.40 : 258,983.86 = 107,124.44 : x
  2. Step 2: Convert to fraction form
    187,671.40/258,983.86 = 107,124.44/x
  3. Step 3: Cross multiply
    187,671.40x = 258,983.86 × 107,124.44
  4. Step 4: Simplify right side
    187,671.40x = 27,743,500,971.54
  5. Step 5: Solve for x
    x = 27,743,500,971.54/187,671.40
  6. Step 6: Final answer
    x = 147,830.20

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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.