Home / 140,979.02-194,533.05-80,553.58

Finding the Fourth Proportional to 140,979.02, 194,533.05 and 80,553.58

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Solution

The fourth proportional to 140,979.02, 194,533.05 and 80,553.58 is: 111,153.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,979.02 : 194,533.05 = 80,553.58 : x
  2. Step 2: Convert to fraction form
    140,979.02/194,533.05 = 80,553.58/x
  3. Step 3: Cross multiply
    140,979.02x = 194,533.05 × 80,553.58
  4. Step 4: Simplify right side
    140,979.02x = 15,670,333,421.56
  5. Step 5: Solve for x
    x = 15,670,333,421.56/140,979.02
  6. Step 6: Final answer
    x = 111,153.66

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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.