Home / 152,515.20-228,772.80-99,371.10

Finding the Fourth Proportional to 152,515.20, 228,772.80 and 99,371.10

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Solution

The fourth proportional to 152,515.20, 228,772.80 and 99,371.10 is: 149,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,515.20 : 228,772.80 = 99,371.10 : x
  2. Step 2: Convert to fraction form
    152,515.20/228,772.80 = 99,371.10/x
  3. Step 3: Cross multiply
    152,515.20x = 228,772.80 × 99,371.10
  4. Step 4: Simplify right side
    152,515.20x = 22,733,404,786.08
  5. Step 5: Solve for x
    x = 22,733,404,786.08/152,515.20
  6. Step 6: Final answer
    x = 149,056.65

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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.