Home / 142,572.29-196,749.11-82,153.67

Finding the Fourth Proportional to 142,572.29, 196,749.11 and 82,153.67

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Solution

The fourth proportional to 142,572.29, 196,749.11 and 82,153.67 is: 113,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,572.29 : 196,749.11 = 82,153.67 : x
  2. Step 2: Convert to fraction form
    142,572.29/196,749.11 = 82,153.67/x
  3. Step 3: Cross multiply
    142,572.29x = 196,749.11 × 82,153.67
  4. Step 4: Simplify right side
    142,572.29x = 16,163,660,677.37
  5. Step 5: Solve for x
    x = 16,163,660,677.37/142,572.29
  6. Step 6: Final answer
    x = 113,371.69

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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.