Home / 187,207.78-258,346.34-106,635.28

Finding the Fourth Proportional to 187,207.78, 258,346.34 and 106,635.28

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Solution

The fourth proportional to 187,207.78, 258,346.34 and 106,635.28 is: 147,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,207.78 : 258,346.34 = 106,635.28 : x
  2. Step 2: Convert to fraction form
    187,207.78/258,346.34 = 106,635.28/x
  3. Step 3: Cross multiply
    187,207.78x = 258,346.34 × 106,635.28
  4. Step 4: Simplify right side
    187,207.78x = 27,548,834,302.88
  5. Step 5: Solve for x
    x = 27,548,834,302.88/187,207.78
  6. Step 6: Final answer
    x = 147,156.46

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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.