Home / 140,567.28-193,982-80,140.40

Finding the Fourth Proportional to 140,567.28, 193,982 and 80,140.40

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Solution

The fourth proportional to 140,567.28, 193,982 and 80,140.40 is: 110,593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,567.28 : 193,982 = 80,140.40 : x
  2. Step 2: Convert to fraction form
    140,567.28/193,982 = 80,140.40/x
  3. Step 3: Cross multiply
    140,567.28x = 193,982 × 80,140.40
  4. Step 4: Simplify right side
    140,567.28x = 15,545,795,072.80
  5. Step 5: Solve for x
    x = 15,545,795,072.80/140,567.28
  6. Step 6: Final answer
    x = 110,593.27

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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.