Home / 159,071.17-219,512.62-87,450.67

Finding the Fourth Proportional to 159,071.17, 219,512.62 and 87,450.67

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Solution

The fourth proportional to 159,071.17, 219,512.62 and 87,450.67 is: 120,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,071.17 : 219,512.62 = 87,450.67 : x
  2. Step 2: Convert to fraction form
    159,071.17/219,512.62 = 87,450.67/x
  3. Step 3: Cross multiply
    159,071.17x = 219,512.62 × 87,450.67
  4. Step 4: Simplify right side
    159,071.17x = 19,196,524,157.64
  5. Step 5: Solve for x
    x = 19,196,524,157.64/159,071.17
  6. Step 6: Final answer
    x = 120,678.84

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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.