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Finding the Fourth Proportional to 151,020.90, 208,403.49 and 83,037.39

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Solution

The fourth proportional to 151,020.90, 208,403.49 and 83,037.39 is: 114,588.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,020.90 : 208,403.49 = 83,037.39 : x
  2. Step 2: Convert to fraction form
    151,020.90/208,403.49 = 83,037.39/x
  3. Step 3: Cross multiply
    151,020.90x = 208,403.49 × 83,037.39
  4. Step 4: Simplify right side
    151,020.90x = 17,305,281,876.49
  5. Step 5: Solve for x
    x = 17,305,281,876.49/151,020.90
  6. Step 6: Final answer
    x = 114,588.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.