Home / 106,045.40-159,069.20-31,166.88

Finding the Fourth Proportional to 106,045.40, 159,069.20 and 31,166.88

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Solution

The fourth proportional to 106,045.40, 159,069.20 and 31,166.88 is: 46,750.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,045.40 : 159,069.20 = 31,166.88 : x
  2. Step 2: Convert to fraction form
    106,045.40/159,069.20 = 31,166.88/x
  3. Step 3: Cross multiply
    106,045.40x = 159,069.20 × 31,166.88
  4. Step 4: Simplify right side
    106,045.40x = 4,957,690,668.10
  5. Step 5: Solve for x
    x = 4,957,690,668.10/106,045.40
  6. Step 6: Final answer
    x = 46,750.64

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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.