Home / 115,814.40-173,721.60-111,385.73

Finding the Fourth Proportional to 115,814.40, 173,721.60 and 111,385.73

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Solution

The fourth proportional to 115,814.40, 173,721.60 and 111,385.73 is: 167,078.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,814.40 : 173,721.60 = 111,385.73 : x
  2. Step 2: Convert to fraction form
    115,814.40/173,721.60 = 111,385.73/x
  3. Step 3: Cross multiply
    115,814.40x = 173,721.60 × 111,385.73
  4. Step 4: Simplify right side
    115,814.40x = 19,350,106,364.16
  5. Step 5: Solve for x
    x = 19,350,106,364.16/115,814.40
  6. Step 6: Final answer
    x = 167,078.59

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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.