Home / 231,511.41-319,548.12-136,082.07

Finding the Fourth Proportional to 231,511.41, 319,548.12 and 136,082.07

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Solution

The fourth proportional to 231,511.41, 319,548.12 and 136,082.07 is: 187,829.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,511.41 : 319,548.12 = 136,082.07 : x
  2. Step 2: Convert to fraction form
    231,511.41/319,548.12 = 136,082.07/x
  3. Step 3: Cross multiply
    231,511.41x = 319,548.12 × 136,082.07
  4. Step 4: Simplify right side
    231,511.41x = 43,484,769,634.21
  5. Step 5: Solve for x
    x = 43,484,769,634.21/231,511.41
  6. Step 6: Final answer
    x = 187,829.92

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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.