Home / 131,921.84-197,926.50-87,722.58

Finding the Fourth Proportional to 131,921.84, 197,926.50 and 87,722.58

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Solution

The fourth proportional to 131,921.84, 197,926.50 and 87,722.58 is: 131,612.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,921.84 : 197,926.50 = 87,722.58 : x
  2. Step 2: Convert to fraction form
    131,921.84/197,926.50 = 87,722.58/x
  3. Step 3: Cross multiply
    131,921.84x = 197,926.50 × 87,722.58
  4. Step 4: Simplify right side
    131,921.84x = 17,362,623,230.37
  5. Step 5: Solve for x
    x = 17,362,623,230.37/131,921.84
  6. Step 6: Final answer
    x = 131,612.96

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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.