Home / 187,619.90-258,915.03-102,736.22

Finding the Fourth Proportional to 187,619.90, 258,915.03 and 102,736.22

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Solution

The fourth proportional to 187,619.90, 258,915.03 and 102,736.22 is: 141,775.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,619.90 : 258,915.03 = 102,736.22 : x
  2. Step 2: Convert to fraction form
    187,619.90/258,915.03 = 102,736.22/x
  3. Step 3: Cross multiply
    187,619.90x = 258,915.03 × 102,736.22
  4. Step 4: Simplify right side
    187,619.90x = 26,599,951,483.39
  5. Step 5: Solve for x
    x = 26,599,951,483.39/187,619.90
  6. Step 6: Final answer
    x = 141,775.75

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1.5x scale

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.