Home / 187,258.71-258,417-102,375.75

Finding the Fourth Proportional to 187,258.71, 258,417 and 102,375.75

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Solution

The fourth proportional to 187,258.71, 258,417 and 102,375.75 is: 141,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,258.71 : 258,417 = 102,375.75 : x
  2. Step 2: Convert to fraction form
    187,258.71/258,417 = 102,375.75/x
  3. Step 3: Cross multiply
    187,258.71x = 258,417 × 102,375.75
  4. Step 4: Simplify right side
    187,258.71x = 26,455,634,187.75
  5. Step 5: Solve for x
    x = 26,455,634,187.75/187,258.71
  6. Step 6: Final answer
    x = 141,278.52

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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.