Home / 115,917.85-173,848.59-31,678.39

Finding the Fourth Proportional to 115,917.85, 173,848.59 and 31,678.39

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Solution

The fourth proportional to 115,917.85, 173,848.59 and 31,678.39 is: 47,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,917.85 : 173,848.59 = 31,678.39 : x
  2. Step 2: Convert to fraction form
    115,917.85/173,848.59 = 31,678.39/x
  3. Step 3: Cross multiply
    115,917.85x = 173,848.59 × 31,678.39
  4. Step 4: Simplify right side
    115,917.85x = 5,507,243,434.97
  5. Step 5: Solve for x
    x = 5,507,243,434.97/115,917.85
  6. Step 6: Final answer
    x = 47,509.88

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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.