Home / 114,872.18-172,308.95-39,939.86

Finding the Fourth Proportional to 114,872.18, 172,308.95 and 39,939.86

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Solution

The fourth proportional to 114,872.18, 172,308.95 and 39,939.86 is: 59,910.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,872.18 : 172,308.95 = 39,939.86 : x
  2. Step 2: Convert to fraction form
    114,872.18/172,308.95 = 39,939.86/x
  3. Step 3: Cross multiply
    114,872.18x = 172,308.95 × 39,939.86
  4. Step 4: Simplify right side
    114,872.18x = 6,881,995,123.64
  5. Step 5: Solve for x
    x = 6,881,995,123.64/114,872.18
  6. Step 6: Final answer
    x = 59,910.03

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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.