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Finding the Fourth Proportional to 151,351.58, 208,647.01 and 105,888.71

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Solution

The fourth proportional to 151,351.58, 208,647.01 and 105,888.71 is: 145,973.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,351.58 : 208,647.01 = 105,888.71 : x
  2. Step 2: Convert to fraction form
    151,351.58/208,647.01 = 105,888.71/x
  3. Step 3: Cross multiply
    151,351.58x = 208,647.01 × 105,888.71
  4. Step 4: Simplify right side
    151,351.58x = 22,093,362,734.26
  5. Step 5: Solve for x
    x = 22,093,362,734.26/151,351.58
  6. Step 6: Final answer
    x = 145,973.78

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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.