Home / 140,761.81-194,177.69-87,029.65

Finding the Fourth Proportional to 140,761.81, 194,177.69 and 87,029.65

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Solution

The fourth proportional to 140,761.81, 194,177.69 and 87,029.65 is: 120,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,761.81 : 194,177.69 = 87,029.65 : x
  2. Step 2: Convert to fraction form
    140,761.81/194,177.69 = 87,029.65/x
  3. Step 3: Cross multiply
    140,761.81x = 194,177.69 × 87,029.65
  4. Step 4: Simplify right side
    140,761.81x = 16,899,215,963.36
  5. Step 5: Solve for x
    x = 16,899,215,963.36/140,761.81
  6. Step 6: Final answer
    x = 120,055.40

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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.