Home / 187,495.79-258,768.95-105,840.50

Finding the Fourth Proportional to 187,495.79, 258,768.95 and 105,840.50

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Solution

The fourth proportional to 187,495.79, 258,768.95 and 105,840.50 is: 146,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,495.79 : 258,768.95 = 105,840.50 : x
  2. Step 2: Convert to fraction form
    187,495.79/258,768.95 = 105,840.50/x
  3. Step 3: Cross multiply
    187,495.79x = 258,768.95 × 105,840.50
  4. Step 4: Simplify right side
    187,495.79x = 27,388,233,229.43
  5. Step 5: Solve for x
    x = 27,388,233,229.43/187,495.79
  6. Step 6: Final answer
    x = 146,073.86

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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.