Home / 131,691.88-197,569.26-42,945.46

Finding the Fourth Proportional to 131,691.88, 197,569.26 and 42,945.46

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Solution

The fourth proportional to 131,691.88, 197,569.26 and 42,945.46 is: 64,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,691.88 : 197,569.26 = 42,945.46 : x
  2. Step 2: Convert to fraction form
    131,691.88/197,569.26 = 42,945.46/x
  3. Step 3: Cross multiply
    131,691.88x = 197,569.26 × 42,945.46
  4. Step 4: Simplify right side
    131,691.88x = 8,484,702,752.56
  5. Step 5: Solve for x
    x = 8,484,702,752.56/131,691.88
  6. Step 6: Final answer
    x = 64,428.44

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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.