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Finding the Fourth Proportional to 201,374.76, 277,959.12 and 129,754.56

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Solution

The fourth proportional to 201,374.76, 277,959.12 and 129,754.56 is: 179,101.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,374.76 : 277,959.12 = 129,754.56 : x
  2. Step 2: Convert to fraction form
    201,374.76/277,959.12 = 129,754.56/x
  3. Step 3: Cross multiply
    201,374.76x = 277,959.12 × 129,754.56
  4. Step 4: Simplify right side
    201,374.76x = 36,066,463,313.59
  5. Step 5: Solve for x
    x = 36,066,463,313.59/201,374.76
  6. Step 6: Final answer
    x = 179,101.21

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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.