Home / 106,449.71-146,747.93-83,749.28

Finding the Fourth Proportional to 106,449.71, 146,747.93 and 83,749.28

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Solution

The fourth proportional to 106,449.71, 146,747.93 and 83,749.28 is: 115,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,449.71 : 146,747.93 = 83,749.28 : x
  2. Step 2: Convert to fraction form
    106,449.71/146,747.93 = 83,749.28/x
  3. Step 3: Cross multiply
    106,449.71x = 146,747.93 × 83,749.28
  4. Step 4: Simplify right side
    106,449.71x = 12,290,032,326.50
  5. Step 5: Solve for x
    x = 12,290,032,326.50/106,449.71
  6. Step 6: Final answer
    x = 115,453.89

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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.