Home / 151,455.90-208,999.71-83,469.09

Finding the Fourth Proportional to 151,455.90, 208,999.71 and 83,469.09

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Solution

The fourth proportional to 151,455.90, 208,999.71 and 83,469.09 is: 115,182.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,455.90 : 208,999.71 = 83,469.09 : x
  2. Step 2: Convert to fraction form
    151,455.90/208,999.71 = 83,469.09/x
  3. Step 3: Cross multiply
    151,455.90x = 208,999.71 × 83,469.09
  4. Step 4: Simplify right side
    151,455.90x = 17,445,015,603.96
  5. Step 5: Solve for x
    x = 17,445,015,603.96/151,455.90
  6. Step 6: Final answer
    x = 115,182.15

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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.