Home / 187,620.40-258,915.72-102,736.72

Finding the Fourth Proportional to 187,620.40, 258,915.72 and 102,736.72

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Solution

The fourth proportional to 187,620.40, 258,915.72 and 102,736.72 is: 141,776.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,620.40 : 258,915.72 = 102,736.72 : x
  2. Step 2: Convert to fraction form
    187,620.40/258,915.72 = 102,736.72/x
  3. Step 3: Cross multiply
    187,620.40x = 258,915.72 × 102,736.72
  4. Step 4: Simplify right side
    187,620.40x = 26,600,151,829.24
  5. Step 5: Solve for x
    x = 26,600,151,829.24/187,620.40
  6. Step 6: Final answer
    x = 141,776.44

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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.