Home / 106,439.82-159,660.38-31,560.67

Finding the Fourth Proportional to 106,439.82, 159,660.38 and 31,560.67

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Solution

The fourth proportional to 106,439.82, 159,660.38 and 31,560.67 is: 47,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,439.82 : 159,660.38 = 31,560.67 : x
  2. Step 2: Convert to fraction form
    106,439.82/159,660.38 = 31,560.67/x
  3. Step 3: Cross multiply
    106,439.82x = 159,660.38 × 31,560.67
  4. Step 4: Simplify right side
    106,439.82x = 5,038,988,565.25
  5. Step 5: Solve for x
    x = 5,038,988,565.25/106,439.82
  6. Step 6: Final answer
    x = 47,341.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.