Home / 187,619.06-258,904.68-102,719.72

Finding the Fourth Proportional to 187,619.06, 258,904.68 and 102,719.72

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Solution

The fourth proportional to 187,619.06, 258,904.68 and 102,719.72 is: 141,747.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,619.06 : 258,904.68 = 102,719.72 : x
  2. Step 2: Convert to fraction form
    187,619.06/258,904.68 = 102,719.72/x
  3. Step 3: Cross multiply
    187,619.06x = 258,904.68 × 102,719.72
  4. Step 4: Simplify right side
    187,619.06x = 26,594,616,236.29
  5. Step 5: Solve for x
    x = 26,594,616,236.29/187,619.06
  6. Step 6: Final answer
    x = 141,747.95

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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.