Home / 187,320.26-258,504-102,435.50

Finding the Fourth Proportional to 187,320.26, 258,504 and 102,435.50

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Solution

The fourth proportional to 187,320.26, 258,504 and 102,435.50 is: 141,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,320.26 : 258,504 = 102,435.50 : x
  2. Step 2: Convert to fraction form
    187,320.26/258,504 = 102,435.50/x
  3. Step 3: Cross multiply
    187,320.26x = 258,504 × 102,435.50
  4. Step 4: Simplify right side
    187,320.26x = 26,479,986,492
  5. Step 5: Solve for x
    x = 26,479,986,492/187,320.26
  6. Step 6: Final answer
    x = 141,362.11

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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.