Home / 131,508.28-197,402.82-56,665.36

Finding the Fourth Proportional to 131,508.28, 197,402.82 and 56,665.36

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Solution

The fourth proportional to 131,508.28, 197,402.82 and 56,665.36 is: 85,058.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,508.28 : 197,402.82 = 56,665.36 : x
  2. Step 2: Convert to fraction form
    131,508.28/197,402.82 = 56,665.36/x
  3. Step 3: Cross multiply
    131,508.28x = 197,402.82 × 56,665.36
  4. Step 4: Simplify right side
    131,508.28x = 11,185,901,860.32
  5. Step 5: Solve for x
    x = 11,185,901,860.32/131,508.28
  6. Step 6: Final answer
    x = 85,058.54

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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.