Home / 151,383.60-208,909.37-84,315.60

Finding the Fourth Proportional to 151,383.60, 208,909.37 and 84,315.60

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Solution

The fourth proportional to 151,383.60, 208,909.37 and 84,315.60 is: 116,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,383.60 : 208,909.37 = 84,315.60 : x
  2. Step 2: Convert to fraction form
    151,383.60/208,909.37 = 84,315.60/x
  3. Step 3: Cross multiply
    151,383.60x = 208,909.37 × 84,315.60
  4. Step 4: Simplify right side
    151,383.60x = 17,614,318,455.59
  5. Step 5: Solve for x
    x = 17,614,318,455.59/151,383.60
  6. Step 6: Final answer
    x = 116,355.53

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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.