Home / 131,939.84-197,953.52-87,740.56

Finding the Fourth Proportional to 131,939.84, 197,953.52 and 87,740.56

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Solution

The fourth proportional to 131,939.84, 197,953.52 and 87,740.56 is: 131,639.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,939.84 : 197,953.52 = 87,740.56 : x
  2. Step 2: Convert to fraction form
    131,939.84/197,953.52 = 87,740.56/x
  3. Step 3: Cross multiply
    131,939.84x = 197,953.52 × 87,740.56
  4. Step 4: Simplify right side
    131,939.84x = 17,368,552,698.77
  5. Step 5: Solve for x
    x = 17,368,552,698.77/131,939.84
  6. Step 6: Final answer
    x = 131,639.94

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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.