Home / 140,530.49-193,927.21-80,120.59

Finding the Fourth Proportional to 140,530.49, 193,927.21 and 80,120.59

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Solution

The fourth proportional to 140,530.49, 193,927.21 and 80,120.59 is: 110,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,530.49 : 193,927.21 = 80,120.59 : x
  2. Step 2: Convert to fraction form
    140,530.49/193,927.21 = 80,120.59/x
  3. Step 3: Cross multiply
    140,530.49x = 193,927.21 × 80,120.59
  4. Step 4: Simplify right side
    140,530.49x = 15,537,563,338.65
  5. Step 5: Solve for x
    x = 15,537,563,338.65/140,530.49
  6. Step 6: Final answer
    x = 110,563.64

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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.