Home / 151,451.82-208,966.77-91,068.75

Finding the Fourth Proportional to 151,451.82, 208,966.77 and 91,068.75

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Solution

The fourth proportional to 151,451.82, 208,966.77 and 91,068.75 is: 125,652.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,451.82 : 208,966.77 = 91,068.75 : x
  2. Step 2: Convert to fraction form
    151,451.82/208,966.77 = 91,068.75/x
  3. Step 3: Cross multiply
    151,451.82x = 208,966.77 × 91,068.75
  4. Step 4: Simplify right side
    151,451.82x = 19,030,342,535.44
  5. Step 5: Solve for x
    x = 19,030,342,535.44/151,451.82
  6. Step 6: Final answer
    x = 125,652.78

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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.