Home / 187,142.50-258,257.31-102,259.56

Finding the Fourth Proportional to 187,142.50, 258,257.31 and 102,259.56

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Solution

The fourth proportional to 187,142.50, 258,257.31 and 102,259.56 is: 141,118.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,142.50 : 258,257.31 = 102,259.56 : x
  2. Step 2: Convert to fraction form
    187,142.50/258,257.31 = 102,259.56/x
  3. Step 3: Cross multiply
    187,142.50x = 258,257.31 × 102,259.56
  4. Step 4: Simplify right side
    187,142.50x = 26,409,280,047.59
  5. Step 5: Solve for x
    x = 26,409,280,047.59/187,142.50
  6. Step 6: Final answer
    x = 141,118.56

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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.