Home / 151,534.82-209,163.94-87,888.26

Finding the Fourth Proportional to 151,534.82, 209,163.94 and 87,888.26

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Solution

The fourth proportional to 151,534.82, 209,163.94 and 87,888.26 is: 121,312.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,534.82 : 209,163.94 = 87,888.26 : x
  2. Step 2: Convert to fraction form
    151,534.82/209,163.94 = 87,888.26/x
  3. Step 3: Cross multiply
    151,534.82x = 209,163.94 × 87,888.26
  4. Step 4: Simplify right side
    151,534.82x = 18,383,054,741.34
  5. Step 5: Solve for x
    x = 18,383,054,741.34/151,534.82
  6. Step 6: Final answer
    x = 121,312.41

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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.