Home / 131,790.72-197,767.29-51,814.63

Finding the Fourth Proportional to 131,790.72, 197,767.29 and 51,814.63

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Solution

The fourth proportional to 131,790.72, 197,767.29 and 51,814.63 is: 77,753.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,790.72 : 197,767.29 = 51,814.63 : x
  2. Step 2: Convert to fraction form
    131,790.72/197,767.29 = 51,814.63/x
  3. Step 3: Cross multiply
    131,790.72x = 197,767.29 × 51,814.63
  4. Step 4: Simplify right side
    131,790.72x = 10,247,237,968.62
  5. Step 5: Solve for x
    x = 10,247,237,968.62/131,790.72
  6. Step 6: Final answer
    x = 77,753.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.