Home / 106,423.12-159,733.60-53,869.84

Finding the Fourth Proportional to 106,423.12, 159,733.60 and 53,869.84

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Solution

The fourth proportional to 106,423.12, 159,733.60 and 53,869.84 is: 80,854.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,423.12 : 159,733.60 = 53,869.84 : x
  2. Step 2: Convert to fraction form
    106,423.12/159,733.60 = 53,869.84/x
  3. Step 3: Cross multiply
    106,423.12x = 159,733.60 × 53,869.84
  4. Step 4: Simplify right side
    106,423.12x = 8,604,823,474.62
  5. Step 5: Solve for x
    x = 8,604,823,474.62/106,423.12
  6. Step 6: Final answer
    x = 80,854.83

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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.