Home / 187,258.61-258,434.66-102,388.43

Finding the Fourth Proportional to 187,258.61, 258,434.66 and 102,388.43

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Solution

The fourth proportional to 187,258.61, 258,434.66 and 102,388.43 is: 141,305.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,258.61 : 258,434.66 = 102,388.43 : x
  2. Step 2: Convert to fraction form
    187,258.61/258,434.66 = 102,388.43/x
  3. Step 3: Cross multiply
    187,258.61x = 258,434.66 × 102,388.43
  4. Step 4: Simplify right side
    187,258.61x = 26,460,718,058.78
  5. Step 5: Solve for x
    x = 26,460,718,058.78/187,258.61
  6. Step 6: Final answer
    x = 141,305.75

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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.