Home / 158,709.33-219,028.82-87,089.54

Finding the Fourth Proportional to 158,709.33, 219,028.82 and 87,089.54

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Solution

The fourth proportional to 158,709.33, 219,028.82 and 87,089.54 is: 120,189.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,709.33 : 219,028.82 = 87,089.54 : x
  2. Step 2: Convert to fraction form
    158,709.33/219,028.82 = 87,089.54/x
  3. Step 3: Cross multiply
    158,709.33x = 219,028.82 × 87,089.54
  4. Step 4: Simplify right side
    158,709.33x = 19,075,119,180.54
  5. Step 5: Solve for x
    x = 19,075,119,180.54/158,709.33
  6. Step 6: Final answer
    x = 120,189.02

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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.