Home / 106,421.70-159,657.58-31,542.46

Finding the Fourth Proportional to 106,421.70, 159,657.58 and 31,542.46

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Solution

The fourth proportional to 106,421.70, 159,657.58 and 31,542.46 is: 47,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,421.70 : 159,657.58 = 31,542.46 : x
  2. Step 2: Convert to fraction form
    106,421.70/159,657.58 = 31,542.46/x
  3. Step 3: Cross multiply
    106,421.70x = 159,657.58 × 31,542.46
  4. Step 4: Simplify right side
    106,421.70x = 5,035,992,830.85
  5. Step 5: Solve for x
    x = 5,035,992,830.85/106,421.70
  6. Step 6: Final answer
    x = 47,321.11

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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.