Home / 140,671.54-194,126.73-77,009.33

Finding the Fourth Proportional to 140,671.54, 194,126.73 and 77,009.33

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Solution

The fourth proportional to 140,671.54, 194,126.73 and 77,009.33 is: 106,272.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,671.54 : 194,126.73 = 77,009.33 : x
  2. Step 2: Convert to fraction form
    140,671.54/194,126.73 = 77,009.33/x
  3. Step 3: Cross multiply
    140,671.54x = 194,126.73 × 77,009.33
  4. Step 4: Simplify right side
    140,671.54x = 14,949,569,608.92
  5. Step 5: Solve for x
    x = 14,949,569,608.92/140,671.54
  6. Step 6: Final answer
    x = 106,272.88

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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.