Home / 177,234.30-265,901.67-72,128.70

Finding the Fourth Proportional to 177,234.30, 265,901.67 and 72,128.70

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Solution

The fourth proportional to 177,234.30, 265,901.67 and 72,128.70 is: 108,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,234.30 : 265,901.67 = 72,128.70 : x
  2. Step 2: Convert to fraction form
    177,234.30/265,901.67 = 72,128.70/x
  3. Step 3: Cross multiply
    177,234.30x = 265,901.67 × 72,128.70
  4. Step 4: Simplify right side
    177,234.30x = 19,179,141,784.93
  5. Step 5: Solve for x
    x = 19,179,141,784.93/177,234.30
  6. Step 6: Final answer
    x = 108,213.49

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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.