Home / 151,454.21-208,998.29-83,470.97

Finding the Fourth Proportional to 151,454.21, 208,998.29 and 83,470.97

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Solution

The fourth proportional to 151,454.21, 208,998.29 and 83,470.97 is: 115,185.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,454.21 : 208,998.29 = 83,470.97 : x
  2. Step 2: Convert to fraction form
    151,454.21/208,998.29 = 83,470.97/x
  3. Step 3: Cross multiply
    151,454.21x = 208,998.29 × 83,470.97
  4. Step 4: Simplify right side
    151,454.21x = 17,445,289,577.29
  5. Step 5: Solve for x
    x = 17,445,289,577.29/151,454.21
  6. Step 6: Final answer
    x = 115,185.24

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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.