Home / 187,072.05-258,155.24-102,189.45

Finding the Fourth Proportional to 187,072.05, 258,155.24 and 102,189.45

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Solution

The fourth proportional to 187,072.05, 258,155.24 and 102,189.45 is: 141,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,072.05 : 258,155.24 = 102,189.45 : x
  2. Step 2: Convert to fraction form
    187,072.05/258,155.24 = 102,189.45/x
  3. Step 3: Cross multiply
    187,072.05x = 258,155.24 × 102,189.45
  4. Step 4: Simplify right side
    187,072.05x = 26,380,741,479.27
  5. Step 5: Solve for x
    x = 26,380,741,479.27/187,072.05
  6. Step 6: Final answer
    x = 141,019.15

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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.