Home / 158,849.55-219,213.90-87,231.07

Finding the Fourth Proportional to 158,849.55, 219,213.90 and 87,231.07

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Solution

The fourth proportional to 158,849.55, 219,213.90 and 87,231.07 is: 120,379.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,849.55 : 219,213.90 = 87,231.07 : x
  2. Step 2: Convert to fraction form
    158,849.55/219,213.90 = 87,231.07/x
  3. Step 3: Cross multiply
    158,849.55x = 219,213.90 × 87,231.07
  4. Step 4: Simplify right side
    158,849.55x = 19,122,263,055.87
  5. Step 5: Solve for x
    x = 19,122,263,055.87/158,849.55
  6. Step 6: Final answer
    x = 120,379.71

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1.5x scale

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.