Home / 187,670.36-258,985.10-102,787.41

Finding the Fourth Proportional to 187,670.36, 258,985.10 and 102,787.41

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Solution

The fourth proportional to 187,670.36, 258,985.10 and 102,787.41 is: 141,846.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,670.36 : 258,985.10 = 102,787.41 : x
  2. Step 2: Convert to fraction form
    187,670.36/258,985.10 = 102,787.41/x
  3. Step 3: Cross multiply
    187,670.36x = 258,985.10 × 102,787.41
  4. Step 4: Simplify right side
    187,670.36x = 26,620,407,143.65
  5. Step 5: Solve for x
    x = 26,620,407,143.65/187,670.36
  6. Step 6: Final answer
    x = 141,846.63

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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.