Home / 117,982.20-176,973.30-80,657.40

Finding the Fourth Proportional to 117,982.20, 176,973.30 and 80,657.40

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Solution

The fourth proportional to 117,982.20, 176,973.30 and 80,657.40 is: 120,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,982.20 : 176,973.30 = 80,657.40 : x
  2. Step 2: Convert to fraction form
    117,982.20/176,973.30 = 80,657.40/x
  3. Step 3: Cross multiply
    117,982.20x = 176,973.30 × 80,657.40
  4. Step 4: Simplify right side
    117,982.20x = 14,274,206,247.42
  5. Step 5: Solve for x
    x = 14,274,206,247.42/117,982.20
  6. Step 6: Final answer
    x = 120,986.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.