Home / 159,034.23-219,462.35-87,414.03

Finding the Fourth Proportional to 159,034.23, 219,462.35 and 87,414.03

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Solution

The fourth proportional to 159,034.23, 219,462.35 and 87,414.03 is: 120,628.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,034.23 : 219,462.35 = 87,414.03 : x
  2. Step 2: Convert to fraction form
    159,034.23/219,462.35 = 87,414.03/x
  3. Step 3: Cross multiply
    159,034.23x = 219,462.35 × 87,414.03
  4. Step 4: Simplify right side
    159,034.23x = 19,184,088,009.70
  5. Step 5: Solve for x
    x = 19,184,088,009.70/159,034.23
  6. Step 6: Final answer
    x = 120,628.67

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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.