Home / 106,329.69-159,521.85-31,446.81

Finding the Fourth Proportional to 106,329.69, 159,521.85 and 31,446.81

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Solution

The fourth proportional to 106,329.69, 159,521.85 and 31,446.81 is: 47,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,329.69 : 159,521.85 = 31,446.81 : x
  2. Step 2: Convert to fraction form
    106,329.69/159,521.85 = 31,446.81/x
  3. Step 3: Cross multiply
    106,329.69x = 159,521.85 × 31,446.81
  4. Step 4: Simplify right side
    106,329.69x = 5,016,453,307.80
  5. Step 5: Solve for x
    x = 5,016,453,307.80/106,329.69
  6. Step 6: Final answer
    x = 47,178.29

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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.