Home / 140,438.16-193,790.73-80,005.20

Finding the Fourth Proportional to 140,438.16, 193,790.73 and 80,005.20

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Solution

The fourth proportional to 140,438.16, 193,790.73 and 80,005.20 is: 110,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,438.16 : 193,790.73 = 80,005.20 : x
  2. Step 2: Convert to fraction form
    140,438.16/193,790.73 = 80,005.20/x
  3. Step 3: Cross multiply
    140,438.16x = 193,790.73 × 80,005.20
  4. Step 4: Simplify right side
    140,438.16x = 15,504,264,742.82
  5. Step 5: Solve for x
    x = 15,504,264,742.82/140,438.16
  6. Step 6: Final answer
    x = 110,399.23

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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.