Home / 210,885.72-291,013.62-126,049.56

Finding the Fourth Proportional to 210,885.72, 291,013.62 and 126,049.56

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Solution

The fourth proportional to 210,885.72, 291,013.62 and 126,049.56 is: 173,943.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,885.72 : 291,013.62 = 126,049.56 : x
  2. Step 2: Convert to fraction form
    210,885.72/291,013.62 = 126,049.56/x
  3. Step 3: Cross multiply
    210,885.72x = 291,013.62 × 126,049.56
  4. Step 4: Simplify right side
    210,885.72x = 36,682,138,755.01
  5. Step 5: Solve for x
    x = 36,682,138,755.01/210,885.72
  6. Step 6: Final answer
    x = 173,943.21

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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.