Home / 131,814.75-197,755.85-38,320.50

Finding the Fourth Proportional to 131,814.75, 197,755.85 and 38,320.50

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Solution

The fourth proportional to 131,814.75, 197,755.85 and 38,320.50 is: 57,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,814.75 : 197,755.85 = 38,320.50 : x
  2. Step 2: Convert to fraction form
    131,814.75/197,755.85 = 38,320.50/x
  3. Step 3: Cross multiply
    131,814.75x = 197,755.85 × 38,320.50
  4. Step 4: Simplify right side
    131,814.75x = 7,578,102,858.32
  5. Step 5: Solve for x
    x = 7,578,102,858.32/131,814.75
  6. Step 6: Final answer
    x = 57,490.55

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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.