Home / 187,800.12-259,169.22-102,920.76

Finding the Fourth Proportional to 187,800.12, 259,169.22 and 102,920.76

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Solution

The fourth proportional to 187,800.12, 259,169.22 and 102,920.76 is: 142,033.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,800.12 : 259,169.22 = 102,920.76 : x
  2. Step 2: Convert to fraction form
    187,800.12/259,169.22 = 102,920.76/x
  3. Step 3: Cross multiply
    187,800.12x = 259,169.22 × 102,920.76
  4. Step 4: Simplify right side
    187,800.12x = 26,673,893,091.01
  5. Step 5: Solve for x
    x = 26,673,893,091.01/187,800.12
  6. Step 6: Final answer
    x = 142,033.42

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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.