Home / 151,238.28-208,721.70-83,268.48

Finding the Fourth Proportional to 151,238.28, 208,721.70 and 83,268.48

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Solution

The fourth proportional to 151,238.28, 208,721.70 and 83,268.48 is: 114,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,238.28 : 208,721.70 = 83,268.48 : x
  2. Step 2: Convert to fraction form
    151,238.28/208,721.70 = 83,268.48/x
  3. Step 3: Cross multiply
    151,238.28x = 208,721.70 × 83,268.48
  4. Step 4: Simplify right side
    151,238.28x = 17,379,938,702.02
  5. Step 5: Solve for x
    x = 17,379,938,702.02/151,238.28
  6. Step 6: Final answer
    x = 114,917.59

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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.