Home / 152,310.78-228,330.54-72,299.39

Finding the Fourth Proportional to 152,310.78, 228,330.54 and 72,299.39

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Solution

The fourth proportional to 152,310.78, 228,330.54 and 72,299.39 is: 108,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,310.78 : 228,330.54 = 72,299.39 : x
  2. Step 2: Convert to fraction form
    152,310.78/228,330.54 = 72,299.39/x
  3. Step 3: Cross multiply
    152,310.78x = 228,330.54 × 72,299.39
  4. Step 4: Simplify right side
    152,310.78x = 16,508,157,618.72
  5. Step 5: Solve for x
    x = 16,508,157,618.72/152,310.78
  6. Step 6: Final answer
    x = 108,384.70

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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.