Home / 187,585.43-258,867.90-102,702.50

Finding the Fourth Proportional to 187,585.43, 258,867.90 and 102,702.50

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Solution

The fourth proportional to 187,585.43, 258,867.90 and 102,702.50 is: 141,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,585.43 : 258,867.90 = 102,702.50 : x
  2. Step 2: Convert to fraction form
    187,585.43/258,867.90 = 102,702.50/x
  3. Step 3: Cross multiply
    187,585.43x = 258,867.90 × 102,702.50
  4. Step 4: Simplify right side
    187,585.43x = 26,586,380,499.75
  5. Step 5: Solve for x
    x = 26,586,380,499.75/187,585.43
  6. Step 6: Final answer
    x = 141,729.45

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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.