Home / 131,721.14-197,581.69-31,881.32

Finding the Fourth Proportional to 131,721.14, 197,581.69 and 31,881.32

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Solution

The fourth proportional to 131,721.14, 197,581.69 and 31,881.32 is: 47,821.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,721.14 : 197,581.69 = 31,881.32 : x
  2. Step 2: Convert to fraction form
    131,721.14/197,581.69 = 31,881.32/x
  3. Step 3: Cross multiply
    131,721.14x = 197,581.69 × 31,881.32
  4. Step 4: Simplify right side
    131,721.14x = 6,299,165,618.84
  5. Step 5: Solve for x
    x = 6,299,165,618.84/131,721.14
  6. Step 6: Final answer
    x = 47,821.98

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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.