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Finding the Fourth Proportional to 177,652.45, 245,174.36 and 101,174.78

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Solution

The fourth proportional to 177,652.45, 245,174.36 and 101,174.78 is: 139,629.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,652.45 : 245,174.36 = 101,174.78 : x
  2. Step 2: Convert to fraction form
    177,652.45/245,174.36 = 101,174.78/x
  3. Step 3: Cross multiply
    177,652.45x = 245,174.36 × 101,174.78
  4. Step 4: Simplify right side
    177,652.45x = 24,805,461,934.64
  5. Step 5: Solve for x
    x = 24,805,461,934.64/177,652.45
  6. Step 6: Final answer
    x = 139,629.16

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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.