Home / 158,629.94-218,909.64-87,010.56

Finding the Fourth Proportional to 158,629.94, 218,909.64 and 87,010.56

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Solution

The fourth proportional to 158,629.94, 218,909.64 and 87,010.56 is: 120,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,629.94 : 218,909.64 = 87,010.56 : x
  2. Step 2: Convert to fraction form
    158,629.94/218,909.64 = 87,010.56/x
  3. Step 3: Cross multiply
    158,629.94x = 218,909.64 × 87,010.56
  4. Step 4: Simplify right side
    158,629.94x = 19,047,450,365.80
  5. Step 5: Solve for x
    x = 19,047,450,365.80/158,629.94
  6. Step 6: Final answer
    x = 120,074.75

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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.