Home / 165,815.07-228,861.71-105,373.91

Finding the Fourth Proportional to 165,815.07, 228,861.71 and 105,373.91

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Solution

The fourth proportional to 165,815.07, 228,861.71 and 105,373.91 is: 145,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,815.07 : 228,861.71 = 105,373.91 : x
  2. Step 2: Convert to fraction form
    165,815.07/228,861.71 = 105,373.91/x
  3. Step 3: Cross multiply
    165,815.07x = 228,861.71 × 105,373.91
  4. Step 4: Simplify right side
    165,815.07x = 24,116,051,560.81
  5. Step 5: Solve for x
    x = 24,116,051,560.81/165,815.07
  6. Step 6: Final answer
    x = 145,439.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.