Home / 140,898.78-194,460.18-87,201.06

Finding the Fourth Proportional to 140,898.78, 194,460.18 and 87,201.06

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Solution

The fourth proportional to 140,898.78, 194,460.18 and 87,201.06 is: 120,349.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,898.78 : 194,460.18 = 87,201.06 : x
  2. Step 2: Convert to fraction form
    140,898.78/194,460.18 = 87,201.06/x
  3. Step 3: Cross multiply
    140,898.78x = 194,460.18 × 87,201.06
  4. Step 4: Simplify right side
    140,898.78x = 16,957,133,823.79
  5. Step 5: Solve for x
    x = 16,957,133,823.79/140,898.78
  6. Step 6: Final answer
    x = 120,349.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.