Home / 151,927.23-209,481.71-103,557.79

Finding the Fourth Proportional to 151,927.23, 209,481.71 and 103,557.79

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Solution

The fourth proportional to 151,927.23, 209,481.71 and 103,557.79 is: 142,788.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,927.23 : 209,481.71 = 103,557.79 : x
  2. Step 2: Convert to fraction form
    151,927.23/209,481.71 = 103,557.79/x
  3. Step 3: Cross multiply
    151,927.23x = 209,481.71 × 103,557.79
  4. Step 4: Simplify right side
    151,927.23x = 21,693,462,933.02
  5. Step 5: Solve for x
    x = 21,693,462,933.02/151,927.23
  6. Step 6: Final answer
    x = 142,788.51

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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.