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Finding the Fourth Proportional to 177,313.52, 265,969.64 and 72,107.76

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Solution

The fourth proportional to 177,313.52, 265,969.64 and 72,107.76 is: 108,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,313.52 : 265,969.64 = 72,107.76 : x
  2. Step 2: Convert to fraction form
    177,313.52/265,969.64 = 72,107.76/x
  3. Step 3: Cross multiply
    177,313.52x = 265,969.64 × 72,107.76
  4. Step 4: Simplify right side
    177,313.52x = 19,178,474,968.41
  5. Step 5: Solve for x
    x = 19,178,474,968.41/177,313.52
  6. Step 6: Final answer
    x = 108,161.38

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1.5x scale

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.