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Finding the Fourth Proportional to 177,879.76, 245,487.38 and 101,400.67

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Solution

The fourth proportional to 177,879.76, 245,487.38 and 101,400.67 is: 139,940.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,879.76 : 245,487.38 = 101,400.67 : x
  2. Step 2: Convert to fraction form
    177,879.76/245,487.38 = 101,400.67/x
  3. Step 3: Cross multiply
    177,879.76x = 245,487.38 × 101,400.67
  4. Step 4: Simplify right side
    177,879.76x = 24,892,585,368.91
  5. Step 5: Solve for x
    x = 24,892,585,368.91/177,879.76
  6. Step 6: Final answer
    x = 139,940.52

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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.