Home / 131,558.09-197,320.73-77,553.77

Finding the Fourth Proportional to 131,558.09, 197,320.73 and 77,553.77

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Solution

The fourth proportional to 131,558.09, 197,320.73 and 77,553.77 is: 116,320.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,558.09 : 197,320.73 = 77,553.77 : x
  2. Step 2: Convert to fraction form
    131,558.09/197,320.73 = 77,553.77/x
  3. Step 3: Cross multiply
    131,558.09x = 197,320.73 × 77,553.77
  4. Step 4: Simplify right side
    131,558.09x = 15,302,965,136.28
  5. Step 5: Solve for x
    x = 15,302,965,136.28/131,558.09
  6. Step 6: Final answer
    x = 116,320.98

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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.