Home / 187,187.67-258,315.15-102,305.34

Finding the Fourth Proportional to 187,187.67, 258,315.15 and 102,305.34

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Solution

The fourth proportional to 187,187.67, 258,315.15 and 102,305.34 is: 141,179.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,187.67 : 258,315.15 = 102,305.34 : x
  2. Step 2: Convert to fraction form
    187,187.67/258,315.15 = 102,305.34/x
  3. Step 3: Cross multiply
    187,187.67x = 258,315.15 × 102,305.34
  4. Step 4: Simplify right side
    187,187.67x = 26,427,019,247.90
  5. Step 5: Solve for x
    x = 26,427,019,247.90/187,187.67
  6. Step 6: Final answer
    x = 141,179.27

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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.