Home / 235,772.18-325,269.51-145,100.78

Finding the Fourth Proportional to 235,772.18, 325,269.51 and 145,100.78

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Solution

The fourth proportional to 235,772.18, 325,269.51 and 145,100.78 is: 200,179.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,772.18 : 325,269.51 = 145,100.78 : x
  2. Step 2: Convert to fraction form
    235,772.18/325,269.51 = 145,100.78/x
  3. Step 3: Cross multiply
    235,772.18x = 325,269.51 × 145,100.78
  4. Step 4: Simplify right side
    235,772.18x = 47,196,859,611.22
  5. Step 5: Solve for x
    x = 47,196,859,611.22/235,772.18
  6. Step 6: Final answer
    x = 200,179.93

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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.